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Wednesday, December 23, 2020

Self-awareness

From Wikipedia, the free encyclopedia
The Painter and the Buyer (1565).
In this drawing by Pieter Brueghel the Elder, the painter is thought to be a self-portrait.

In philosophy of self, self-awareness is the experience of one's own personality or individuality. It is not to be confused with consciousness in the sense of qualia. While consciousness is being aware of one's environment and body and lifestyle, self-awareness is the recognition of that awareness. Self-awareness is how an individual consciously knows and understands their own character, feelings, motives, and desires. There are two broad categories of self-awareness: internal self-awareness and external self-awareness.

Neurobiological basis

Introduction

There are questions regarding what part of the brain allows us to be self-aware and how we are biologically programmed to be self-aware. V.S. Ramachandran has speculated that mirror neurons may provide the neurological basis of human self-awareness. In an essay written for the Edge Foundation in 2009, Ramachandran gave the following explanation of his theory: "... I also speculated that these neurons can not only help simulate other people's behavior but can be turned 'inward'—as it were—to create second-order representations or meta-representations of your own earlier brain processes. This could be the neural basis of introspection, and of the reciprocity of self awareness and other awareness. There is obviously a chicken-or-egg question here as to which evolved first, but... The main point is that the two co-evolved, mutually enriching each other to create the mature representation of self that characterizes modern humans."

Health

In health and medicine, body-awareness is a construct that refers to a person's overall ability to direct their focus on various internal sensations accurately. Both proprioception and interoception allow individuals to be consciously aware of various sensations. Proprioception allows individuals and patients to focus on sensations in their muscles and joints, posture, and balance, while interoception is used to determine sensations of the internal organs, such as fluctuating heartbeat, respiration, lung pain, or satiety. Over-acute body-awareness, under-acute body-awareness, and distorted body-awareness are symptoms present in a variety of health disorders and conditions, such as obesity, anorexia nervosa, and chronic joint pain. For example, a distorted perception of satiety present in a patient suffering from anorexia nervosa

Human development

Bodily self-awareness in human development refers to one's awareness of their body as a physical object, with physical properties, that can interact with other objects. Tests have shown that at the age of only a few months old, toddlers are already aware of the relationship between the proprioceptive and visual information they receive. This is called first-person self-awareness.

At around 18 months old and later, children begin to develop reflective self-awareness, which is the next stage of bodily awareness and involves children recognizing themselves in reflections, mirrors, and pictures. Children who have not obtained this stage of bodily self-awareness yet will tend to view reflections of themselves as other children and respond accordingly, as if they were looking at someone else face to face. In contrast, those who have reached this level of awareness will recognize that they see themselves, for instance seeing dirt on their face in the reflection and then touching their own face to wipe it off.

Slightly after toddlers become reflectively self-aware, they begin to develop the ability to recognize their bodies as physical objects in time and space that interact and impact other objects. For instance, a toddler placed on a blanket, when asked to hand someone the blanket, will recognize that they need to get off it to be able to lift it. This is the final stage of body self-awareness and is called objective self-awareness.

Non-human animals

The mirror test is a simple measure of self-awareness.

Studies have been done mainly on primates to test if self-awareness is present. Apes, monkeys, elephants, and dolphins have been studied most frequently. The most relevant studies to this day that represent self-awareness in animals have been done on chimpanzees, dolphins, and magpies. Self-awareness in animals is tested through mirror self-recognition.

Animals that show mirror self-recognition undergo four stages:

  1. social response,
  2. physical mirror inspection,
  3. repetitive mirror testing behavior, and
  4. the mark test, which involves the animals spontaneously touching a mark on their body which would have been difficult to see without the mirror.

David DeGrazia states that there are three types of self-awareness in animals; the first being, bodily self-awareness. This sense of awareness allows animals to understand that they are different from the rest of the environment; it is also the reason why animals do not eat themselves. Bodily-awareness also includes proprioception and sensation. The second type of self-awareness in animals is social self-awareness. This type of awareness is seen in highly social animals and is the awareness that they have a role within themselves in order to survive. This type of awareness allows animals to interact with each other. The final type of self-awareness is introspective awareness. This awareness is responsible for animals to understand feelings, desires, and beliefs.

The red-spot technique created and experimented by Gordon G. Gallup studies self-awareness in animals (primates). In this technique, a red odorless spot is placed on an anesthetized primate's forehead. The spot is placed on the forehead so that it can only be seen through a mirror. Once the individual awakens, independent movements toward the spot after seeing their reflection in a mirror are observed. During the red-spot technique, after looking in the mirror, chimpanzees used their fingers to touch the red dot that was on their forehead and, after touching the red dot they would even smell their fingertips. "Animals that can recognize themselves in mirrors can conceive of themselves," says Gallup. Another prime example are elephants. Three elephants were exposed to large mirrors where experimenters studied the reaction when the elephants saw their reflection. These elephants were given the "litmus mark test" in order to see whether they were aware of what they were looking at. This visible mark was applied on the elephants and the researchers reported a large progress with self-awareness. The elephants shared this success rate with other animals such as monkeys and dolphins.

Chimpanzees and other apes – species which have been studied extensively – compare the most to humans with the most convincing findings and straightforward evidence in the relativity of self-awareness in animals so far. Dolphins were put to a similar test and achieved the same results. Diana Reiss, a psycho-biologist at the New York Aquarium discovered that bottlenose dolphins can recognize themselves in mirrors.

Researchers also used the mark test or mirror test to study the magpie's self-awareness. As a majority of birds are blind below the beak, Prior et al. marked the birds’ neck with three different colors: red, yellow, and black (as an imitation, as magpies are originally black). When placed in front of a mirror, the birds with the red and yellow spots began scratching at their necks, signaling the understanding of something different being on their bodies. During one trial with a mirror and a mark, three out of the five magpies showed a minimum of one example of self-directed behavior. The magpies explored the mirror by moving toward it and looking behind it. One of the magpies, Harvey, during several trials would pick up objects, pose, do some wing-flapping, all in front of the mirror with the objects in his beak. This represents a sense of self-awareness; knowing what is going on within himself and in the present. The authors suggest that self-recognition in birds and mammals may be a case of convergent evolution, where similar evolutionary pressures result in similar behaviors or traits, although they arrive at them via different routes.

A few slight occurrences of behavior towards the magpie's own body happened in the trial with the black mark and the mirror. It is assumed in this study that the black mark may have been slightly visible on the black feathers. Prior et al. stated, "This is an indirect support for the interpretation that the behavior towards the mark region was elicited by seeing the own body in the mirror in conjunction with an unusual spot on the body."

The behaviors of the magpies clearly contrasted with no mirror present. In the no-mirror trials, a non-reflective gray plate of the same size and in the same position as the mirror was swapped in. There were not any mark directed self-behaviors when the mark was present, in color, or in black. Prior's et al. data quantitatively matches the findings in chimpanzees. In summary of the mark test, the results show that magpies understand that a mirror image represents their own body; magpies show to have self-awareness.

Cooperation and evolutionary problems

An organism can be effectively altruistic without being self-aware, aware of any distinction between egoism and altruism, or aware of qualia in others. This by simple reactions to specific situations which happens to benefit other individuals in the organism's natural environment. If self-awareness led to a necessity of an emotional empathy mechanism for altruism and egoism being default in its absence, that would have precluded evolution from a state without self-awareness to a self-aware state in all social animals. The ability of the theory of evolution to explain self-awareness can be rescued by abandoning the hypothesis of self-awareness being a basis for cruelty.

Psychology

Self-awareness has been called "arguably the most fundamental issue in psychology, from both a developmental and an evolutionary perspective."

Self-awareness theory, developed by Duval and Wicklund in their 1972 landmark book A theory of objective self awareness, states that when we focus our attention on ourselves, we evaluate and compare our current behavior to our internal standards and values. This elicits a state of objective self-awareness. We become self-conscious as objective evaluators of ourselves. However self-awareness is not to be confused with self-consciousness. Various emotional states are intensified by self-awareness. However, some people may seek to increase their self-awareness through these outlets. People are more likely to align their behavior with their standards when made self-aware. People will be negatively affected if they don't live up to their personal standards. Various environmental cues and situations induce awareness of the self, such as mirrors, an audience, or being videotaped or recorded. These cues also increase accuracy of personal memory. In one of Andreas Demetriou's neo-Piagetian theories of cognitive development, self-awareness develops systematically from birth through the life span and it is a major factor for the development of general inferential processes. Moreover, a series of recent studies showed that self-awareness about cognitive processes participates in general intelligence on a par with processing efficiency functions, such as working memory, processing speed, and reasoning. Albert Bandura's theory of self-efficacy builds on our varying degrees of self-awareness. It is "the belief in one's capabilities to organize and execute the courses of action required to manage prospective situations." A person's belief in their ability to succeed sets the stage to how they think, behave and feel. Someone with a strong self-efficacy, for example, views challenges as mere tasks that must be overcome, and are not easily discouraged by setbacks. They are aware of their flaws and abilities and choose to utilize these qualities to the best of their ability. Someone with a weak sense of self-efficacy evades challenges and quickly feels discouraged by setbacks. They may not be aware of these negative reactions, and therefore do not always change their attitude. This concept is central to Bandura's social cognitive theory, "which emphasizes the role of observational learning, social experience, and reciprocal determinism in the development of personality."

Developmental stages

Individuals become conscious of themselves through the development of self-awareness. This particular type of self-development pertains to becoming conscious of one's own body and mental state of mind including thoughts, actions, ideas, feelings and interactions with others. "Self-awareness does not occur suddenly through one particular behavior: it develops gradually through a succession of different behaviors all of which relate to the self." The monitoring of one's mental states is called metacognition and it is considered to be an indicator that there is some concept of the self. It is developed through an early sense of non-self components using sensory and memory sources. In developing self–awareness through self-exploration and social experiences one can broaden one's social world and become more familiar with the self.

According to Emory University's Philippe Rochat, there are five levels of self-awareness which unfold in early development and six potential prospects ranging from "Level 0" (having no self-awareness) advancing complexity to "Level 5" (explicit self-awareness).

  • Level 0: Confusion. At this level the individual has a degree of zero self-awareness. This person is unaware of any mirror reflection or the mirror itself. They perceive the mirror as an extension of their environment. Level 0 can also be displayed when an adult frightens himself in a mirror mistaking his own reflection as another person just for a second.
  • Level 1: Differentiation. The individual realizes the mirror is able to reflect things. They see that what is in the mirror is different from what is surrounding them. At this level they can differentiate between their own movement in the mirror and the movement of the surrounding environment.
  • Level 2: Situation. At this point an individual can link the movements on the mirror to what is perceived within their own body. This is the first hint of self-exploration on a projected surface where what is visualized on the mirror is special to the self.
  • Level 3: Identification. This stage is characterized by the new ability to identify self: an individual can now see that what's in the mirror is not another person but actually them. It is seen when a child, instead of referring to the mirror while referring to themselves, refers to themselves while looking in the mirror.
  • Level 4: Permanence. Once an individual reaches this level they can identify the self beyond the present mirror imagery. They are able to identify the self in previous pictures looking different or younger. A "permanent self" is now experienced.
  • Level 5: Self-consciousness or "meta" self-awareness. At this level not only is the self seen from a first person view but it is realized that it is also seen from a third person's view. They begin to understand they can be in the mind of others. For instance, how they are seen from a public standpoint.

Infancy and early childhood

It is to be kept in mind that as an infant comes into this world, they have no concept of what is around them, nor for the significance of others around them. It is throughout the first year that they gradually begin to acknowledge that their body is actually separate from that of their mother, and that they are an "active, causal agent in space". By the end of the first year, they additionally realize that their movement, as well, is separate from movement of the mother. That is a huge advance, yet they are still quite limited and cannot yet know what they look like, "in the sense that the infant cannot recognize its own face". By the time an average toddler reaches 18–24 months, they will discover themselves and recognize their own reflection in the mirror, however research has found that this age varies widely with differing socioeconomic levels and differences relating to culture and parenting. They begin to acknowledge the fact that the image in front of them, who happens to be them, moves; indicating that they appreciate and can consider the relationship between cause and effect that is happening. By the age of 24 months the toddler will observe and relate their own actions to those actions of other people and the surrounding environment. Once an infant has gotten a lot of experience, and time, in front of a mirror, it is only then that they are able to recognize themselves in the reflection, and understand that it is them. For example, in a study, an experimenter took a red marker and put a fairly large red dot (so it is visible by the infant) on the infant's nose, and placed them in front of a mirror. Prior to 15 months of age, the infant will not react to this, but after 15 months of age, they will either touch their nose, wondering what it is they have on their face, or point to it. This indicates the appearance that they recognize that the image they see in the reflection of the mirror is themselves. There is somewhat of the same thing called the mirror-self recognition task, and it has been used as a research tool for numerous years, and has given, and lead to, key foundations of the infant's sense/awareness of self. For example, "for Piaget, the objectification of the bodily self occurs as the infant becomes able to represent the body's spatial and causal relationship with the external world (Piaget, 1954). Facial recognition places a big pivotal point in their development of self-awareness. By 18 months, the infant can communicate their name to others, and upon being shown a picture they are in, they can identify themselves. By two years old, they also usually acquire gender category and age categories, saying things such as "I am a girl, not a boy" and "I am a baby or child, not a grownup". Evidently, it is not at the level of an adult or an adolescent, but as an infant moves to middle childhood and onwards to adolescence, they develop a higher level of self-awareness and self-description.

As infants develop their senses, using multiple senses of in order to recognize what is around them, infants can become affected by something known as "facial multi stimulation". In one experiment by Filippetti, Farroni, and Johnson, an infant of around five months in age is given what is known as an “enfacement illusion”. “Infants watched a side-by-side video display of a peer’s face being systematically stroked on the cheek with a paintbrush. During the video presentation, the infant’s own cheek was stroked in synchrony with one video and in asynchrony with the other”. Infants were proven to recognize and project an image of a peer with that of their own, showing beginning signs of facial recognition cues onto one's self, with the assistance of an illusion.

Piaget

Around school age a child's awareness of personal memory transitions into a sense of one's own self. At this stage, a child begins to develop interests along with likes and dislikes. This transition enables the awareness of an individual's past, present, and future to grow as conscious experiences are remembered more often. As a preschooler, they begin to give much more specific details about things, instead of generalizing. For example, the preschooler will talk about the Los Angeles Lakers basketball team, and the New York Rangers hockey team, instead of the infant just stating that he likes sports. Furthermore, they will start to express certain preferences (e.g., Tod likes mac and cheese) and will start to identify certain possessions of theirs (e.g., Lara has a bird as a pet at home). At this age, the infant is in the stage Piaget names the pre operational stage of development. The infant is very inaccurate at judging themselves because they do not have much to go about. For example, an infant at this stage will not associate that they are strong with their ability to cross the jungle gym at their school, nor will they associate the fact that they can solve a math problem with their ability to count.

Adolescence

One becomes conscious of their emotions during adolescence. Most children are aware of emotions such as shame, guilt, pride and embarrassment by the age of two, but do not fully understand how those emotions affect their life. By age 13, children become more in touch with these emotions and begin to apply them to their own lives. A study entitled "The Construction of the Self" found that many adolescents display happiness and self-confidence around friends, but hopelessness and anger around parents due to the fear of being a disappointment. Teenagers were also shown to feel intelligent and creative around teachers, and shy, uncomfortable and nervous around people they were not familiar with.

In adolescent development, the definition self-awareness also has a more complex emotional context due to the maturity of adolescents compared to those in the early childhood phase, and these elements can include but are not limited to self-image, self-concept, and self–consciousness along many other traits that can relate to Rochat's final level of self awareness, however it is still a distinct concept within its own previous definition. Social interactions mainly separate the element of self-awareness in adolescent rather than in childhood, as well as further developed emotional recognition skills in adolescents. Sandu, Pânișoară, and Pânișoară demonstrate these in their work with teenagers and demonstrates that there is a mature sense of self-awareness with students who were aged 17, which in term provides a clear structure with how elements like self-concept, self-image, and self-consciousness relate to self-awareness.

Mental health

As children reach their adolescent stages of life, the acute sense of emotion has widened into a meta cognitive state in which mental health issues can become more prevalent due to their heightened emotional and social development. There are elements of contextual behavioral science such as Self-as-Content, Self-as-Process and Self-as-Context, involved with adolescent self-awareness that can associate with mental health. Moran, Almada, and McHugh presented the idea that these domains of self are associated with adolescent mental health in various capacities. Anger management is also a domain of mental health that is associated with the concept of self-awareness in teens. Self-awareness training has been linked to lowering anger management issues and reducing aggressive tendencies in adolescents: “Persons having sufficient self-awareness promote relaxation and awareness about themselves and when going angry, at the first step they become aware of anger in their inside and accept it, then try to handle it”.

Philosophy

Locke

An early philosophical discussion of self-awareness is that of John Locke. Locke was apparently influenced by René Descartes' statement normally translated 'I think, therefore I am' (Cogito ergo sum). In chapter XXVII "On Identity and Diversity" of Locke's An Essay Concerning Human Understanding (1689) he conceptualized consciousness as the repeated self-identification of oneself through which moral responsibility could be attributed to the subject—and therefore punishment and guiltiness justified, as critics such as Nietzsche would point out, affirming "...the psychology of conscience is not 'the voice of God in man'; it is the instinct of cruelty ... expressed, for the first time, as one of the oldest and most indispensable elements in the foundation of culture." John Locke does not use the terms self-awareness or self-consciousness though.

According to Locke, personal identity (the self) "depends on consciousness, not on substance". We are the same person to the extent that we are conscious of our past and future thoughts and actions in the same way as we are conscious of our present thoughts and actions. If consciousness is this "thought" which doubles all thoughts, then personal identity is only founded on the repeated act of consciousness: "This may show us wherein personal identity consists: not in the identity of substance, but ... in the identity of consciousness." For example, one may claim to be a reincarnation of Plato, therefore having the same soul. However, one would be the same person as Plato only if one had the same consciousness of Plato's thoughts and actions that he himself did. Therefore, self-identity is not based on the soul. One soul may have various personalities.

Locke argues that self-identity is not founded either on the body or the substance, as the substance may change while the person remains the same. "Animal identity is preserved in identity of life, and not of substance", as the body of the animal grows and changes during its life. describes a case of a prince and a cobbler in which the soul of the prince is transferred to the body of the cobbler and vice versa. The prince still views himself as a prince, though he no longer looks like one. This border-case leads to the problematic thought that since personal identity is based on consciousness, and that only oneself can be aware of his consciousness, exterior human judges may never know if they really are judging—and punishing—the same person, or simply the same body. Locke argues that one may be judged for the actions of one's body rather than one's soul, and only God knows how to correctly judge a man's actions. Men also are only responsible for the acts of which they are conscious. This forms the basis of the insanity defense which argues that one cannot be held accountable for acts in which they were unconsciously irrational, or mentally ill— In reference to man's personality, Locke claims that "whatever past actions it cannot reconcile or appropriate to that present self by consciousness, it can be no more concerned in it than if they had never been done: and to receive pleasure or pain, i.e. reward or punishment, on the account of any such action, is all one as to be made happy or miserable in its first being, without any demerit at all."

Disorders

The medical term for not being aware of one's deficits is anosognosia, or more commonly known as a lack of insight. Having a lack of awareness raises the risks of treatment and service nonadherence. Individuals who deny having an illness may be against seeking professional help because they are convinced that nothing is wrong with them. Disorders of self-awareness frequently follow frontal lobe damage. There are two common methods used to measure how severe an individual's lack of self-awareness is. The Patient Competency Rating Scale (PCRS) evaluates self-awareness in patients who have endured a traumatic brain injury. PCRS is a 30-item self-report instrument which asks the subject to use a 5-point Likert scale to rate his or her degree of difficulty in a variety of tasks and functions. Independently, relatives or significant others who know the patient well are also asked to rate the patient on each of the same behavioral items. The difference between the relatives’ and patient's perceptions is considered an indirect measure of impaired self-awareness. The limitations of this experiment rest on the answers of the relatives. Results of their answers can lead to a bias. This limitation prompted a second method of testing a patient's self-awareness. Simply asking a patient why they are in the hospital or what is wrong with their body can give compelling answers as to what they see and are analyzing.

Anosognosia

Anosognosia was a term coined by Joseph Babinski to describe the clinical condition in which an individual suffered from left hemiplegia following a right cerebral hemisphere stroke yet denied that there were any problems with their left arm or leg. This condition is known as anosognosia for hemiplegia (AHP). This condition has evolved throughout the years and is now used to describe people who lack subjective experience in both neurological and neuropsychological cases. A wide variety of disorders are associated with anosognosia. For example, patients who are blind from cortical lesions might in fact be unaware that they are blind and may state that they do not suffer from any visual disturbances. Individuals with aphasia and other cognitive disorders may also suffer from anosognosia as they are unaware of their deficiencies and when they make certain speech errors, they may not correct themselves due to their unawareness. Individuals who suffer from Alzheimer's disease lack awareness; this deficiency becomes more intense throughout their disease. A key issue with this disorder is that people who do have anosognosia and suffer from certain illnesses may not be aware of them, which ultimately leads them to put themselves in dangerous positions and/or environments. To this day there are still no available treatments for AHP, but it has been documented that temporary remission has been used following vestibular stimulation.

Dissociative identity disorder

Dissociative identity disorder or multiple personality disorder (MPD) is a disorder involving a disturbance of identity in which two or more separate and distinct personality states (or identities) control an individual's behavior at different times. One identity may be different from another, and when an individual with DID is under the influence of one of their identities, they may forget their experiences when they switch to the other identity. "When under the control of one identity, a person is usually unable to remember some of the events that occurred while other personalities were in control." They may experience time loss, amnesia, and adopt different mannerisms, attitudes, speech and ideas under different personalities. They are often unaware of the different lives they lead or their condition in general, feeling as though they are looking at their life through the lens of someone else, and even being unable to recognize themselves in a mirror. Two cases of DID have brought awareness to the disorder, the first case being that of Eve. This patient harbored three different personalities: Eve White the good wife and mother, Eve Black the party girl, and Jane the intellectual. Under stress, her episodes would worsen. She even tried to strangle her own daughter and had no recollection of the act afterward. Eve went through years of therapy before she was able to learn how to control her alters and be mindful of her disorder and episodes. Her condition, being so rare at the time, inspired the book and film adaptation The Three Faces of Eve, as well as a memoir by Eve herself entitled I'm Eve. Doctors speculated that growing up during the Depression and witnessing horrific things being done to other people could have triggered emotional distress, periodic amnesia, and eventually DID. In the second case, Shirley Mason, or Sybil, was described as having over 16 separate personalities with different characteristics and talents. Her accounts of horrific and sadistic abuse by her mother during childhood prompted doctors to believe that this trauma caused her personalities to split, furthering the unproven idea that this disorder was rooted in child abuse, while also making the disorder famous. In 1998 however, Sybil's case was exposed as a sham. Her therapist would encourage Sybil to act as her other alter ego although she felt perfectly like herself. Her condition was exaggerated in order to seal book deals and television adaptations. Awareness of this disorder began to crumble shortly after this finding. To this day, no proven cause of DID has been found, but treatments such as psychotherapy, medications, hypnotherapy, and adjunctive therapies have proven to be very effective.

Autism spectrum disorder

Autism spectrum disorder (ASD) is a range of neurodevelopmental disabilities that can adversely impact social communication and create behavioral challenges (Understanding Autism, 2003). "Autism spectrum disorder (ASD) and autism are both general terms for a group of complex disorders of brain development. These disorders are characterized, in varying degrees, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors." ASDs can also cause imaginative abnormalities and can range from mild to severe, especially in sensory-motor, perceptual and affective dimensions. Children with ASD may struggle with self-awareness and self acceptance. Their different thinking patterns and brain processing functions in the area of social thinking and actions may compromise their ability to understand themselves and social connections to others. About 75% diagnosed autistics are mentally handicapped in some general way and the other 25% diagnosed with Asperger's Syndrome show average to good cognitive functioning. When we compare our own behavior to the morals and values that we were taught, we can focus more attention on ourselves which increases self-awareness. To understand the many effects of autism spectrum disorders on those afflicted have led many scientists to theorize what level of self-awareness occurs and in what degree. Research found that ASD can be associated with intellectual disability and difficulties in motor coordination and attention. It can also result in physical health issues as well, such as sleep and gastrointestinal disturbances. As a result of all those problems, individuals are literally unaware of themselves. It is well known that children suffering from varying degrees of autism struggle in social situations. Scientists at the University of Cambridge have produced evidence that self-awareness is a main problem for people with ASD. Researchers used functional magnetic resonance scans (FMRI) to measure brain activity in volunteers being asked to make judgments about their own thoughts, opinions, preferences, as well as about someone else's. One area of the brain closely examined was the ventromedial pre-frontal cortex (vMPFC) which is known to be active when people think about themselves.

Major brain structures implicated in autism.

A study out of Stanford University has tried to map out brain circuits with understanding self-awareness in Autism Spectrum Disorders. This study suggests that self-awareness is primarily lacking in social situations but when in private they are more self-aware and present. It is in the company of others while engaging in interpersonal interaction that the self-awareness mechanism seems to fail. Higher functioning individuals on the ASD scale have reported that they are more self-aware when alone unless they are in sensory overload or immediately following social exposure. Self-awareness dissipates when an autistic is faced with a demanding social situation. This theory suggests that this happens due to the behavioral inhibitory system which is responsible for self-preservation. This is the system that prevents human from self-harm like jumping out of a speeding bus or putting our hand on a hot stove. Once a dangerous situation is perceived then the behavioral inhibitory system kicks in and restrains our activities. "For individuals with ASD, this inhibitory mechanism is so powerful, it operates on the least possible trigger and shows an over sensitivity to impending danger and possible threats. Some of these dangers may be perceived as being in the presence of strangers, or a loud noise from a radio. In these situations self-awareness can be compromised due to the desire of self preservation, which trumps social composure and proper interaction.

The Hobson hypothesis reports that autism begins in infancy due to the lack of cognitive and linguistic engagement which in turn results in impaired reflective self-awareness. In this study ten children with Asperger's Syndrome were examined using the Self-understanding Interview. This interview was created by Damon and Hart and focuses on seven core areas or schemas that measure the capacity to think in increasingly difficult levels. This interview will estimate the level of self understanding present. "The study showed that the Asperger group demonstrated impairment in the 'self-as-object' and 'self-as-subject' domains of the Self-understanding Interview, which supported Hobson's concept of an impaired capacity for self-awareness and self-reflection in people with ASD." Self-understanding is a self description in an individual's past, present and future. Without self-understanding it is reported that self-awareness is lacking in people with ASD.

Joint attention (JA) was developed as a teaching strategy to help increase positive self-awareness in those with autism spectrum disorder. JA strategies were first used to directly teach about reflected mirror images and how they relate to their reflected image. Mirror Self Awareness Development (MSAD) activities were used as a four-step framework to measure increases in self-awareness in those with ASD. Self-awareness and knowledge is not something that can simply be taught through direct instruction. Instead, students acquire this knowledge by interacting with their environment. Mirror understanding and its relation to the development of self leads to measurable increases in self-awareness in those with ASD. It also proves to be a highly engaging and highly preferred tool in understanding the developmental stages of self- awareness.

There have been many different theories and studies done on what degree of self-awareness is displayed among people with autism spectrum disorder. Scientists have done research about the various parts of the brain associated with understanding self and self-awareness. Studies have shown evidence of areas of the brain that are impacted by ASD. Other theories suggest that helping an individual learn more about themselves through Joint Activities, such as the Mirror Self Awareness Development may help teach positive self-awareness and growth. In helping to build self-awareness it is also possible to build self-esteem and self acceptance. This in turn can help to allow the individual with ASD to relate better to their environment and have better social interactions with others.

Schizophrenia

Schizophrenia is a chronic psychiatric illness characterized by excessive dopamine activity in the mesolimbic tract and insufficient dopamine activity in the mesocortical tract leading to symptoms of psychosis along with poor cognition in socialization. Under the Diagnostic and Statistical Manual of Mental Disorders, people with schizophrenia have a combination of positive, negative and psychomotor symptoms. These cognitive disturbances involve rare beliefs and/or thoughts of a distorted reality that creates an abnormal pattern of functioning for the patient. The cause of schizophrenia has a substantial genetic component involving many genes. While the heritability of schizophrenia has been found to be around 80%, only about 60% of sufferers report a positive family history of the disorder, and ultimately the cause is thought to be a combination of genetic and environmental factors. It is believed that the experience of stressful life events is an environmental factor that can trigger the onset of schizophrenia in individuals who already are at risk from genetics and age. The level of self-awareness among patients with schizophrenia is a heavily studied topic.

Schizophrenia as a disease state is characterized by severe cognitive dysfunction and it is uncertain to what extent patients are aware of this deficiency. Medalia and Lim (2004) investigated patients’ awareness of their cognitive deficit in the areas of attention, nonverbal memory, and verbal memory. Results from this study (N=185) revealed large discrepancy in patients’ assessment of their cognitive functioning relative to the assessment of their clinicians. Though it is impossible to access one's consciousness and truly understand what a schizophrenic believes, regardless in this study, patients were not aware of their cognitive dysfunctional reasoning. In the DSM-5, to receive a diagnosis of schizophrenia, they must have two or more of the following symptoms in the duration of one month: delusions*, hallucinations*, disorganized speech*, grossly disorganized/catatonic behavior and negative symptoms (*these three symptoms above all other symptoms must be present to correctly diagnose a patient.) Sometimes these symptoms are very prominent and are treated with a combination of antipsychotics (i.e. haloperidol, loxapine), atypical antipsychotics (such as clozapine and risperdone) and psychosocial therapies that include family interventions and socials skills. When a patient is undergoing treatment and recovering from the disorder, the memory of their behavior is present in a diminutive amount; thus, self-awareness of diagnoses of schizophrenia after treatment is rare, as well as subsequent to onset and prevalence in the patient.

The above findings are further supported by a study conducted by Amador and colleagues. The study suggests a correlation exists between patient insight, compliance, and disease progression. Investigators assess insight of illness was assessed via Scale to Assess Unawareness of Mental Disorder and was used along with rating of psychopathology, course of illness, and compliance with treatments in a sample of 43 patients. Patients with poor insight are less likely to be compliant with treatment and are more likely to have a poorer prognosis. Patients with hallucinations sometimes experience positive symptoms, which can include delusions of reference, thought insertion/withdrawal, thought broadcast, delusions of persecution, grandiosity, and many more. These psychoses skew the patient's perspectives of reality in ways in which they truly believe are really happening. For instance, a patient that is experiencing delusions of reference may believe while watching the weather forecast that when the weatherman says it will rain, he is really sending a message to the patient in which rain symbolizes a specific warning completely irrelevant to what the weather is. Another example would be thought broadcast, which is when a patient believes that everyone can hear their thoughts. These positive symptoms sometimes are so severe to where the schizophrenic believes that something is crawling on them or smelling something that is not there in reality. These strong hallucinations are intense and difficult to convince the patient that they do not exist outside of their cognitive beliefs, making it extremely difficult for a patient to understand and become self-aware that what they are experiencing is in fact not there.

Furthermore, a study by Bedford and Davis (2013) was conducted to look at the association of denial vs. acceptance of multiple facets of schizophrenia (self-reflection, self-perception, and insight) and its effect on self-reflection (N=26). Study results suggest patients with increased disease denial have lower recollection for self-evaluated mental illnesses. To a great extent, disease denial creates a hardship for patients to undergo recovery because their feelings and sensations are intensely outstanding. But just as this and the above studies imply, a large proportion of schizophrenics do not have self-awareness of their illness for many factors and severity of reasoning of their diagnoses.

Bipolar disorder

Bipolar disorder is an illness that causes shifts in mood, energy, and ability to function. Self-awareness is crucial in those suffering from this disease, as they must be able to distinguish between feeling a certain way because of the disorder or because of separate issues. "Personality, behavior, and dysfunction affect your bipolar disorder, so you must 'know' yourself in order to make the distinction." This disorder is a difficult one to diagnose, as self-awareness changes with mood. "For instance, what might appear to you as confidence and clever ideas for a new business venture might be a pattern of grandiose thinking and manic behavior". Issues occur between understanding irrationality in a mood swing and being completely wrapped in a manic episode, rationalizing that the exhibited behaviors are normal.

It is important to be able to distinguish what are symptoms of bipolar disorder and what is not. A study done by Mathew et al. was done with the aim of "examining the perceptions of illness in self and among other patients with bipolar disorder in remission".

The study took place at the Department of Psychiatry, Christian Medical College, Vellore, India, which is a centre that specializes in the "management of patients with mental and behavioural disorders". Eighty two patients (thirty two female and fifty male) agreed to partake in the study. These patients met the "International Classification of Diseases – 10 diagnostic criteria for a diagnosis of bipolar disorder I or II and were in remission" and were put through a variety of baseline assessments before beginning the study. These baseline assessments included using a vignette, which was then used as an assessment tool during their follow-up. Patients were then randomly divided into two groups, one who would be following a "structured educational intervention programme" (experimental group), while the other would be following "usual care" (control group).

The study was based on an interview in which patients were asked an array of open-eded questions regarding topics such as "perceived causes, consequences, severity and its effects on body, emotion, social network and home life, and on work, severity, possible course of action, help-seeking behaviour and the role of the doctor/healer". The McNemar test was then used to compare the patients perspective of the illness versus their explanation of the illness. The results of the study show that the beliefs that patients associated with their illness corresponds with the possible causes of the disorder, whereas "studies done among patients during periods of active psychosis have recorded disagreement between their assessments of their own illness". This ties in to how difficult self-awareness is within people who suffer from bipolar disorder.

Although this study was done on a population that were in remission from the disease, the distinction between patients during "active psychosis" versus those in remission shows the evolution of their self-awareness throughout their journey to recovery.

Plants

Self-discrimination in plants is found within their roots, tendrils and flowers that avoid themselves but not others in their environment.

Self-incompatibility mechanism providing evidence for self-awareness in plants

Self-awareness in plants is a fringe topic in the field of self-awareness, and is researched predominantly by botanists. The claim that plants are capable of perceiving self lies in the evidence found that plants will not reproduce with themselves due to a gene selecting mechanism. In addition, vining plants have been shown to avoid coiling around themselves, due to chemical receptors in the plants' tendrils. Unique to plants, awareness of self means that the plant can recognise self, whereas all other known conceptions of self-awareness is the ability to recognise what is not self.

Recognition and rejection of self in plant reproduction

Research by June B. Nasrallah discovered that the plant's pollination mechanism also serves as a mechanism against self-reproduction, which lays out the foundation of scientific evidence that plants could be considered as self-aware organisms. The SI (Self-incompatibility) mechanism in plants is unique in the sense that awareness of self derives from the capacity to recognise self, rather than non-self. The SI mechanism function depends primarily on the interaction between genes S-locus receptor protein kinase (SRK) and S-locus cysteine-rich protein gene (SCR). In cases of self-pollination, SRK and SCR bind to activate SKR, Inhibiting pollen from fertilizing. In cases of cross-pollination, SRK and SCR do not bind and therefore SRK is not activated, causing the pollen to fertilise. In simple terms, the receptors either accept or reject the genes present in the pollen, and when the genes are from the same plant, the SI mechanism described above creates a reaction to prevent the pollen from fertilising.

Self-discrimination in the tendrils of the vine Cayratia japonica mediated by physiological connection

The research by Yuya Fukano and Akira Yamawo provides a link between self-discrimination in vining plants and amongst other classifications where the mechanism discovery has already been established. It also contributes to the general foundation of evidence of self-discrimination mechanisms in plants. The article makes the claim that the biological self-discrimination mechanism that is present in both flowering plants and ascidians, are also present in vining plants. They tested this hypothesis by doing touch tests with self neighbouring and non-self neighbouring pairs of plants. the test was performed by placing the sets of plants close enough for their tendrils to interact with one-another. Evidence of self-discrimination in above-ground plants is demonstrated in the results of the touch testing, which showed that in cases of connected self plants, severed self plants and non-self plants, the rate of tendril activity and likeliness to coil was higher among separated plants than those attached via rhizomes.

Theater

Theater also concerns itself with other awareness besides self-awareness. There is a possible correlation between the experience of the theater audience and individual self-awareness. As actors and audiences must not "break" the fourth wall in order to maintain context, so individuals must not be aware of the artificial, or the constructed perception of his or her reality. This suggests that both self-awareness and the social constructs applied to others are artificial continuums just as theater is. Theatrical efforts such as Six Characters in Search of an Author, or The Wonderful Wizard of Oz, construct yet another layer of the fourth wall, but they do not destroy the primary illusion. Refer to Erving Goffman's Frame Analysis: An Essay on the Organization of Experience.

Science fiction

In science fiction, self-awareness describes an essential human property that often (depending on the circumstances of the story) bestows personhood onto a non-human. If a computer, alien or other object is described as "self-aware", the reader may assume that it will be treated as a completely human character, with similar rights, capabilities and desires to a normal human being. The words "sentience", "sapience" and "consciousness" are used in similar ways in science fiction.

Robotics

In order to be "self-aware," robots can use internal models to simulate their own actions.

Monday, December 21, 2020

Serial Killers Should Fear This Algorithm

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Data on the Murder Accountability Project’s website. Photos by Cait Oppermann for Bloomberg Businessweek.

On Aug. 18, 2010, a police lieutenant in Gary, Ind., received an e-mail, the subject line of which would be right at home in the first few scenes of a David Fincher movie:

“Could there be a serial killer active in the Gary area?”

It isn’t clear what the lieutenant did with that e-mail; it would be understandable if he waved it off as a prank. But the author could not have been more serious. He’d attached source material—spreadsheets created from FBI files showing that over several years the city of Gary had recorded 14 unsolved murders of women between the ages of 20 and 50. The cause of each death was the same: strangulation. Compared with statistics from around the country, he wrote, the number of similar killings in Gary was far greater than the norm. So many people dying the same way in the same city—wouldn’t that suggest that at least a few of them, maybe more, might be connected? And that the killer might still be at large?

The police lieutenant never replied. Twelve days later, the police chief, Gary Carter, received a similar e-mail from the same person. This message added a few details. Several of the women were strangled in their homes. In at least two cases, a fire was set after the murder. In more recent cases, several women were found strangled in or around abandoned buildings. Wasn’t all of this, the writer asked, at least worth a look?

The Gary police never responded to that e-mail, either, or to two follow-up letters sent via registered mail. No one from the department has commented publicly about what was sent to them—nor would anyone comment for this story. “It was the most frustrating experience of my professional life,” says the author of those messages, a 61-year-old retired news reporter from Virginia named Thomas Hargrove.

Hargrove spent his career as a data guy. He analyzed his first set of polling data as a journalism major at the University of Missouri, where he became a student director of the university’s polling organization. He joined an E.W. Scripps newspaper right out of college and expanded his repertoire from political polling data to practically any subject that required statistical analysis. “In the newsroom,” he remembers, “they would say, ‘Give that to Hargrove. That’s a numbers problem.’ ”

In 2004, Hargrove’s editors asked him to look into statistics surrounding prostitution. The only way to study that was to get a copy of the nation’s most comprehensive repository of criminal statistics: the FBI’s Uniform Crime Report, or UCR. When Hargrove called up a copy of the report from the database library at the University of Missouri, attached to it was something he didn’t expect: the Supplementary Homicide Report. “I opened it up, and it was a record I’d never seen before,” he says. “Line by line, every murder that was reported to the FBI.”

This report, covering the year 2002, contained about 16,000 murders, broken down by the victims’ age, race, and sex, as well as the method of killing, the police department that made the report, the circumstances known about the case, and information about the offender, if the offender was known. “I don’t know where these thoughts come from,” Hargrove says, “but the second I saw that thing, I asked myself, ‘Do you suppose it’s possible to teach a computer how to spot serial killers?’ ”

Like a lot of people, Hargrove was aware of criticisms of police being afflicted by tunnel vision when investigating difficult cases. He’d heard the term “linkage blindness,” used to describe the tendency of law-enforcement jurisdictions to fail to connect the dots between similar cases occurring right across the county or state line from one another. Somewhere in this report, Hargrove thought, could be the antidote to linkage blindness. The right person, looking at the information in the right way, might be able to identify any number of at-large serial killers.

Every year he downloaded and crunched the most recent data set. What really shocked him was the number of murder cases that had never been cleared. (In law enforcement, a case is cleared when a suspect is arrested, whatever the eventual outcome.) Hargrove counted 211,487, more than a third of the homicides recorded from 1980 to 2010. Why, he wondered, wasn’t the public up in arms about such a large number of unsolved murders?

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To make matters worse, Hargrove saw that despite a generation’s worth of innovation in the science of crime fighting, including DNA analysis, the rate of cleared cases wasn’t increasing but decreasing—plummeting, even. The average homicide clearance rate in the 1960s was close to 90 percent; by 2010 it was solidly in the mid-’60s. It has fallen further since.

These troubling trends were what moved Hargrove to write to the Gary police. He failed to get any traction there. Sure enough, four years later, in October 2014, in Hammond, Ind.—the town next door to Gary—police found the body of 19-year-old Afrikka Hardy in a room at a Motel 6. Using her phone records, they tracked down a suspect, 43-year-old Darren Deon Vann. Once arrested, Vann took police to the abandoned buildings where he’d stowed six more bodies, all of them in and around Gary. Anith Jones had last been seen alive on Oct. 8; Tracy Martin went missing in June; Kristine Williams and Sonya Billingsley disappeared in February; and Teaira Batey and Tanya Gatlin had vanished in January.

Before invoking his right to remain silent, Vann offhandedly mentioned that he’d been killing people for years—since the 1990s. Hargrove went to Gary, reporting for Scripps, to investigate whether any of the cases he’d identified back in 2010 might possibly be attributed to Vann. He remembers getting just one helpful response, from an assistant coroner in Lake County who promised to follow up, but that too went nowhere. Now, as the Vann prosecution slogs its way through the courts, everyone involved in the case is under a gag order, prevented from speculating publicly about whether any of the victims Hargrove noted in 2010 might also have been killed by Vann. “There are at least seven women who died after I tried to convince the Gary police that they had a serial killer,” Hargrove says. “He was a pretty bad one.”

Hargrove has his eye on other possible killers, too. “I think there are a great many uncaught serial killers out there,” he declares. “I think most cities have at least a few.”

* * *

We’re in a moment when, after decades of decreases nationally in the overall crime rate, the murder rate has begun creeping upward in many major U.S. cities. For two years running, homicides in major cities jumped on average more than 10 percent. (Those increases aren’t uniform, of course: Chicago leapt from 485 reported killings in 2015 to 762 in 2016, while the number of murders dipped in New York and Baltimore.) President Trump, in the campaign and since, has vowed to usher in a new era of law and order, hammering away on Twitter at Chicago’s “carnage” in particular.

Threats of federal intervention aside, it will be difficult to fix the problem of high murder rates without first addressing clearance rates. So it’s fortuitous, perhaps, that we are living in an age in which the analysis of data is supposed to help us decipher, detect, and predict everything from the results of presidential elections to the performance of baseball players. The data-focused approach to problem-solving was brought to life for a lot of people by Michael Lewis’s Moneyball, which introduced the non-baseball-nerd public to the statistical evaluation of Major Leaguers and made a hero of Billy Beane, an executive with the Oakland A’s. Law enforcement would seem to be a fertile area for data to be helpful: In the 1990s the New York Police Department famously used data to more shrewdly deploy its officers to where the crimes were, and its CompStat system became the standard for other departments around the country.

What Hargrove has managed to do goes a few orders of magnitude beyond that. His innovation was to teach a computer to spot trends in unsolved murders, using publicly available information that no one, including anyone in law enforcement, had used before. This makes him, in a manner of speaking, the Billy Beane of murder. His work shines light on a question that’s gone unanswered for too long: Why, exactly, aren’t the police getting any better at solving murder? And how can we even dream of reversing any upticks in the homicide rate while so many killers remain out on the streets?

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Hargrove’s home office in Alexandria, Va.

It took a few years for Hargrove’s editors at Scripps to agree to give him enough time to lose himself in the FBI’s homicide data. With help from a University of Missouri grad student, Hargrove first dumped the homicide report into statistics software in 2008. He spent months trying to develop an algorithm that would identify unsolved cases with enough commonalities to suggest the same murderer. Eventually, he decided to reverse-engineer the algorithm by testing his ideas against one well-known case, that of Gary Ridgway, the so-called Green River Killer, who confessed to killing 48 women over two decades in the Seattle area. Hargrove thought that if he could devise an algorithm that turned up the Green River Killer’s victims, he’d know he was on the right track.

“We found a hundred things that didn’t work,” he recalls. Finally, he settled on four characteristics for what’s called a cluster analysis: geography, sex, age group, and method of killing. For gender, he stuck with women, since they make up the vast majority of multiple-murder victims who aren’t connected to gang-related activity. When he used women between the ages of 20 and 50—the cohort most commonly targeted by serial killers—the algorithm lit up like a slot machine. “It became clear that this thing was working,” he says. “In fact, it was working too well.”

The Green River Killer came up right away in this algorithm. That was good news. Hargrove’s algorithm also pulled up 77 unsolved murders in Los Angeles, which he learned were attributed to several different killers the police were pursuing (including the so-called Southside Slayer and, most recently, the Grim Sleeper), and 64 unsolved murders of women in Phoenix.

Then there was a second group of possible serial killers, those unrecognized by local police. “The whole point of the algorithm was to find the low-hanging fruit, the obvious clusters,” Hargrove says. “But there were dozens and dozens of them all over the country.”

In 2015, Scripps spun off the last of its newspapers, and Hargrove and the other print reporters lost their jobs. “The only guy who left with a skip was me,” he says. Hargrove, who was 59 at the time and had worked at the company for 37 years, qualified for a large severance and a nice pension, leaving him well-covered. Now he had enough time to go all in on his data project. He founded the Murder Accountability Project, or MAP, a tiny nonprofit seeking to make FBI murder data more widely and easily available.

Using Freedom of Information Act (FOIA) requests, MAP has tried to chase down data from the many municipalities and counties that weren’t supplying their murder data to the FBI, out of bureaucratic laziness, a lack of manpower, or perhaps just rank incompetence. MAP has already assembled case details on 638,454 homicides from 1980 through 2014, including 23,219 cases that hadn’t been reported to the FBI. This is the most complete list of case-level details of U.S. murders available anywhere, and the group’s website has open-sourced all of it. Anyone with statistical analysis software, available for free online, can start looking, across jurisdictions, for serial killers. Anyone can compare convicted killers’ timelines against the timing of unsolved murders to determine if a connection is plausible. “You can call up your hometown and look and see if you see anything suspicious,” Hargrove says. “If you’re the father of a murdered daughter, you can call up her record, and you can see if there might be other records that match. We wanted to be able to crowdsource murder.”

* * *

The police have never been great at leveraging the power of their own statistics. Police culture is notably paper-based, scattered, and siloed, and departments aren’t always receptive to technological innovation. The National Crime Information Center (NCIC) database gives police access to information such as fugitive warrants, stolen property, and missing persons, but it’s not searchable for unsolved killings. The Centers for Disease Control and Prevention’s National Violent Death Reporting System compiles death-certificate-based information for homicide victims in 32 states, but, again, can’t be searched for uncleared cases. Some states have their own homicide databases, but they can’t see the data from other states, so linkage blindness persists.

In the 1990s the FBI created another voluntary reporting database, this one specifically for violent and sexual crimes, called the Violent Criminal Apprehension Program, or ViCAP. It never succeeded, either, primarily because it’s voluntary, making it easy for police departments to ignore. “Most law enforcement agencies don’t have a real solid understanding of what the purpose of ViCAP is,” says Gregory Cooper, who ran the program for three years. “The frustration is, I’ve got a car, but no one’s putting any gas in it.” Hargrove calls ViCAP “an experiment that was never properly funded, and most police departments never really bought into the idea.”

All of this contributes to, or at least fails to mitigate, the trend in the Uniform Crime Report and its Supplementary Homicide Report. Hargrove’s analysis of that data shows that the clearance rate, already so low compared with what it was decades ago, dropped from 64.5 percent in 2014 to 61.5 percent in 2015. That translates into 6,043 murder cases in 2015 that didn’t result in arrests. He picked apart those findings and learned that large cities tend to have worse clearance rates than small towns, perhaps because major cases are more rare in less populated areas and therefore tend to get special attention. (This might at least partially explain why about 75 percent of Canada’s 500 to 600 homicides each year are cleared.)

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Hargrove also learned that not all big cities are the same when it comes to murder. “The variance is breathtaking,” he says. Los Angeles, New York, and Houston are well above the average clearance rates—in the low to mid-70s. The bottom of the class includes New Orleans, Detroit, and St. Louis, all bumping along in the mid-40s.

Police in large cities with stubbornly high murder rates point the finger at gang- and drug-related killings, and the reluctance of witnesses to come forward to identify the murderers. “The biggest problem is that everyone knows everyone,” Chester, Pa., Police Commissioner Darren Alston told the Philadelphia Daily News in September. (Chester’s homicide rate outstrips all other U.S. cities’—and is more than double that of nearby Philadelphia.) City residents, in turn, point to a lack of trust in the police. But one other obvious problem is resources. “We fund homicide investigations like we fund education—it comes down to a local tax,” Hargrove says. “When an economy fails enough and we just have to start firing cops, we see everything going to hell.”

MAP tracks staffing trends on its website, too. Hargrove notes that Flint, Mich., and Dayton, Ohio, have seen their clearance rates fall more than 30 percentage points since the 1990s, coinciding with huge reductions in police manpower (330 to 185 officers in Flint; 500 to 394 in Dayton). When Hargrove’s group filed a FOIA request to get homicide data about a suspected serial killer in Detroit, the response was that the police lacked the budget to fulfill the request. “What do you do when a city says, ‘We’re too broke to even try to pull the records?’ ” Hargrove says. “I joke that what we’ve done is to create what amounts to a failed government detector.”

There is a case to be made, though, that clearance rates aren’t just a function of a police department’s staffing. Priorities and management also figure heavily. In 2000, Charles Wellford, a criminologist at the University of Maryland, published a seminal paper in which he identified the commonalities for departments that do effective murder clearance. No. 1 on that list was ensuring that cops are able to chase leads in the critical early hours after a murder, even if that means earning overtime pay. Wellford’s current research looks closely at the amount of money spent per officer, the amount spent per case, and the percentage of detectives on the force. Clearance rates, Wellford says, “are very much determined by priorities and resources. I’m beyond thinking that’s an open question. The question now for me is: How can we use the resources departments have to improve what they’re doing in clearing serious crimes?”

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The most discouraging thing Hargrove has learned since starting his organization is how many police departments around the country not only ignore the FBI’s data but also don’t bother sharing their data with the FBI at all. Among the offenders: the state of Illinois, which MAP has sued for the information. Hargrove recently reported that homicides were more likely to go unsolved in Illinois in 2015 than in any other state: Only 37.3 percent of the 756 homicides were cleared. That dreadful clearance rate would seem to go a long way toward explaining Chicago’s notoriously climbing homicide rate, just as the president and others start searching for solutions.

* * *

From his experience with the Gary police, Hargrove learned the first big lesson of data: If it’s bad news, not everyone wants to see the numbers. Lately, he’s taken to forcing the issue. Together with MAP Vice Chairman Eric Witzig, a retired FBI investigator who worked with ViCAP, Hargrove has conducted teaching sessions with homicide detectives at meetings of the International Homicide Investigators Association and at the FBI’s Training Division in Quantico, Va. Hargrove gets the attention of the detectives in the room by using the JonBenét Ramsey case as a test for the database. The detectives watch as he selects “Colorado” under state, “strangulation” under weapon, “female” under victim’s sex, and “6” under victim’s age. Colorado has only one such case, JonBenét. But then Hargrove broadens the criterion to include strangulations of girls ages 5 through 10, and a second Colorado case pops up: Melanie Sturm, a 10-year-old girl found strangled in Colorado Springs in 1985. Then he broadens it nationwide and finds 27 unsolved cases, 11 of them in Western states. He shows them how easy it is to download this information into a list. It’s like something from CSI. “I believe every law enforcement agency should be made aware of and utilize this program’s database,” Janet Oliva, president of the FBI’s International Criminal Investigative Analysis Fellowship, told Hargrove.

The police in Atlanta are working with MAP now to trace a long string of unsolved murders. But elsewhere, there’s still some skepticism about the power of transparent data to serve the public good. For one thing, it’s expensive. “This is an open debate,” Hargrove says. “Things are getting so bad out there financially that the mayors are wondering, ‘Does it make sense for me to spend my resources on solving crimes against the dead when I’ve got the living who need help, too?’ ” Why not just grab the easy cases—the cases with witnesses, ballistics, and DNA—and put the hard ones on the back burner?

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The answer, at least intuitively, would seem to be that at least some of these murderers will kill again. But if that were true, it ought to affect the murder rate. Sure enough, using his database, Hargrove has confirmed that this is the case. Pulling up information from 218 metropolitan jurisdictions in the 2014 Uniform Crime Report, he found that in the places with poor clearance rates, the homicide rate was almost double that of places where the clearance rate was better—from 9.6 homicides to 17.9 per 100,000 people.

“It makes perfect sense,” Hargrove says. “If you leave the killers to walk the street, why wouldn’t that cause more killings? The answer is, it does.”

Others have reached the same conclusions in different ways. In Ghettoside, a powerful examination of the unsolved-murder epidemic in Los Angeles, author Jill Leovy raises the notion that solving murder cases legitimizes the social order, undermining the ad hoc phenomenon of “street justice” that emerges in lawless areas and makes people feel powerless. So much attention has been paid to police racial bias cases that another sort of injustice—lack of thorough policing—gets overlooked. “It’s not enough to just stop doing the wrong kind of policing,” Mark Funkhouser, a former mayor of Kansas City, Mo., and now publisher of the magazine Governing, wrote in 2016. “It’s vital that we do much more of the right kind.”

A number of studies over the years show that strong community policing and giving high priority to casework can raise clearance rates, independently of workload and budget. This is where management comes in. “When Michael Nutter campaigned for mayor of Philadelphia in 2007, he was saying, ‘I’ll make solving major crimes a major issue in my administration,’ ” Hargrove says. “Well, damned if they didn’t elect him and damned if he didn’t do just that.” Over two years, Philadelphia raised its homicide clearances from 56 percent to 75 percent.

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Hargrove at home.

In Santa Ana, Calif., the clearance rate climbed from about 28 percent in 1993 to almost 100 percent in 2013, after a new police chief created a special homicide unit for gangs and attracted anonymous donations to offer higher rewards for tips leading to arrests. In Oakland, where clearance rates dropped to 30 percent in 2012, the police worked with the FBI to add five agents to the department’s squad of 10 full-time homicide investigators; in 2015 the clearance rate rose to 60 percent. MAP has joined forces with a local TV news station to shine a light on other underperforming police departments in the Bay Area.

“I don’t want to blast a particular politician,” Hargrove says, “but it’s been my experience that when you ask a police chief or a mayor in a well-performing police jurisdiction what their clearance rate is, the mayor and the police chief can snap those figures off, because they’re paying attention.”

As are the police in Austin. Vann, the Gary murderer, was caught not long after moving back to Indiana from Texas, where he’d spent a number of years. While Hargrove never heard back from the Gary police, he did hear from the police in Austin. “They said, ‘We need to know whether he could’ve killed anyone here.’ ”

Hargrove sent the Austin police data on every strangulation death in Texas. It looked like Vann had kept his nose clean; Hargrove couldn’t see any cases there that matched his pattern. “They must have agreed,” Hargrove says, “so that’s a kind of consultation.” The first, perhaps, of many.

 

Human ethology

From Wikipedia, the free encyclopedia
 

Human ethology is the study of human behavior. Ethology as a discipline is generally thought of as a sub-category of biology, though psychological theories have been developed based on ethological ideas (e.g. sociobiology, evolutionary psychology, attachment theory, and theories about human universals such as gender differences, incest avoidance, mourning, hierarchy and pursuit of possession). The bridging between biological sciences and social sciences creates an understanding of human ethology. The International Society for Human Ethology is dedicated to advancing the study and understanding of human ethology.

History

Ethology has its roots in the study of evolution, especially after evolution's increasing popularity after Darwin's detailed observations. It became a distinct discipline in the 1930s with zoologists Konrad Lorenz, Niko Tinbergen and Karl Von Frisch.  These three scientist are known as the major contributors to human ethology. They are also regarded as the fathers or founders of ethology. Konrad Lorenz and Niko Tinbergen rejected theories that relied on stimuli and learning alone, and elaborated on concepts that had not been well understood, such as instinct. They promoted the theory that evolution had placed within creatures innate abilities and responses to certain stimuli that advanced the thriving of the species. Konrad Lorenz also indicated in his earlier works that animal behavior can be a major reference for human behavior. He believed that the research and findings of animal behaviors can lead to findings of human behaviors as well. In 1943, Lorenz devoted much of his book, "Die angeborenen Formen moglicher Erfahrung" to human behavior. He designated that one of the most important factors of ethology was testing the hypothesis derived from animal behavioral studies on human behavioral studies. Due to Lorenz promoting the similarities between studying animal and human behavior, human ethology derived from the study of anima behavior. The other founders of ethology, Niko Tinbergen and Karl von Frisch, received a Nobel Prize in 1973, for their overarching career discoveries concerning organization and elicitation of individual and social behavior patterns.

Many developmental psychologists were eager to incorporate ethological principles into their theories as a way of explaining observable phenomenon in babies that could not necessarily be explained by learning or other concepts. John Bowlby and Mary Ainsworth used ethology prominently to explain aspects of infant-caretaker‍‍ attachment theory‍‍ (Ainsworth & Bowlby, 1991). Some important attachment concepts related to evolution:

  • Attachment has evolved because it promotes the survival of helpless infants. Primates and other animals reflexively attach themselves physically to their parent, and have some calls that elicit parental attention. Human babies have adaptively developed signaling mechanisms such as crying, babbling, and smiling. These are seen as innate and not learned behaviors, because even children born blind and deaf begin to smile socially at 6 weeks, and cry and babble. These behaviors facilitate contact with the caregiver and increase the likelihood of infant survival.
  • Early signaling behaviors and the baby's tendency to look at faces rather than objects lead to attachment between the caretaker and baby that solidifies around 6–9 months of age. Bowlby theorized that this attachment was evolutionarily fundamental to human survival and is the basis for all relationships, even into adulthood.
  • Adults are also adaptively bent toward attachment with infants. Typical "baby-ish" features, such as a large head and eyes in proportion to the body, and round cheeks, are features that elicit affection in adults. Many parents also form a "bond" with their newborn baby within hours of its birth, leading to a deep sense of emotional attachment with one's own offspring and increased behaviors that promote infant survival.
  • Many of Bowlby's early methods relied heavily on ethological observations of children in their natural environments.

In later years, ethology played a large role in sociobiological theory and ultimately, in evolutionary psychology, which is a relatively new field of study. Evolutionary psychology combines ethology, primatology, anthropology, and other fields to study modern human behavior in relation to adaptive ancestral human behaviors.

View on human nature‍‍

  • Humans are social animals. Just as wolves and lions create packs or hunting groups for self-preservation, humans create complex social structures, including families and nations.
  • Humans are "biological organisms that have evolved within a particular environmental niche" (Miller, 2001).
  • Intelligence, language, social attachment, aggression, and altruism are part of human nature because they "serve or once served a purpose in the struggle of the species to survive" (Miller, 2001).
  • Children's developmental level is defined in terms of biologically based behaviors.
  • Human's needs evolve based on their current environment. Humans must adapt in order to survive. Cognitive thinking and communication arose as a result of a need for cooperation amongst individuals for survival.

View on human nature varies across ethological theorists

  • Lorenz believed that humans have an automatic, elicited nature of behavior, such as stimuli that elicit fixed action patterns.‍‍ His theory developed from the reflex model and the hydraulic or "flush toilet" model‍‍, which conceptualized behavior patterns of motivation. Certain fixed action patterns developed out of motivation for survival. Instinct is an example of fixed action patterns. Any behavior is instinctive if it is performed in the absence of learning. Reflexes can be instincts. For example, a newborn baby instinctively knows to search for and suckle its mother's breast for ‍‍nourishment. ‍‍
  • Bowlby (and many other modern ethological theorists) believed that humans spontaneously act to meet the demands of their environment. They are active participants who seek out a parent, food, or a mate (i.e. an infant will seek to remain within sight of a‍‍ caretaker)‍‍.
  • Vygotsky believed that the way humans think is based on the culture they are raised in and the language they are surrounded by. He emphasized that children grow up in the symbols of their culture, especially linguistic symbols. These linguistic symbols categorize and organize the world around them. This organization of the world is internalized, which influence the way they think.
  • Human behavior tends to change based on the environment and the surrounding challenges that individuals begin to face. Two evolutionary advances in human behavior began as a way to allow humans to communicate and collaborate. Infrastructure theorist, Mead and Wittgenstein, theorized the creation of a collaboration in human foraging. This collaboration created social goals amongst people and also created a common ground. To coordinate their common goals,humans evolved a new type of cooperative communication. This communication was based on gestures that allowed humans to cooperate amongst themselves in order to achieve their desired goals. This change in behavior is seen due to the evolving of their environment. The environment demands survival and humans adapted their behavior in order to survive. In other words, this is known as the shared intentionality hypothesis. According to this hypothesis, human thinking evolved from a self-focused, individual intentionality as an adaptation for "dealing with problems of social coordination, specifically, problems presented by individuals' attempts to collaborate and communicate with others." This evolution happened in two steps, one leading from individual to "joint intentionality" and the other from joint intentionality to "collective intentionality".
  • Mechanistic theories view behavior as passive. This theory argues that human behavior is in passivity through physiological drives and emotional stimuli. Unlike mechanistic theories, organismic theories view behavior as active. An organismic theory argues that an organism is active in its behavior, meaning that it decides how it behaves and initiates its own behaviors. Humans have intrinsic needs that they desire to be met. These needs provide energy for humans to act upon their needs in order to meet them, rather than being reactive to them. The active theory on human behavior treats stimuli not as a cause of behavior, but as opportunities humans can utilize to meet their demands.

Human ethology topics

Applied to human behavior, in the majority of cases, topical behavior results from motivational states and the intensity of a specific external stimulus. Organisms with a high inner motivational state for such a stimulus is called appetitive behavior. Other important concepts of zooethology, e.g., territoriality, hierarchy, sensitive periods in ontogenesis, etc., are also useful when discussing human behavior. Irenäus Eibl-Eibesfeldt's book Human Ethology is most important for how these concepts are applied to human behavior.

Human ethology has contributed in two particular ways to our understanding of the ontogeny of behavior in humans. This has resulted, first, from the application of techniques for the precise observation, description and classification of naturally occurring behavior and, secondly, from the ethological approach to the study of behavior, especially the development of behavior in terms of evolution. Of particular interest are questions relating to the function of a particular kind of behavior (e.g., attachment behavior) and its adaptive value. The description of the behavioral repertoire of a species, the recognition of patterns of behavioral development and the classification of established behavioral patterns are prerequisites for any comparison between different species or between organisms of a single species. The ethological approach is the study of the interaction between the organism with certain innate species-specific structures and the environment for which the organism is genetically programmed.

Invariant behavior patterns have a morphological basis, mainly in neuronal structures common to all members of a species and, depending on the kind of behavior, may also be common to a genus or family or a whole order, e.g., primates, or even to a whole class, e.g., mammals. In such structures we can retrace and follow the evolutionary process by which the environment produced structures, especially nervous systems and brains, which generate adaptive behavior. In organisms with a high level of organization, the processes in which the ethologist is especially interested are those genetically preprogrammed motor and perceptual processes that facilitate social interaction and communication, such as facial expression and vocalization. If we consider the most highly developed means of communication, language and speech, which is found in humans alone, the question arises as to the biological foundation of this species-specific behavior and perceptual skill. The ethologist examines this question primarily from the point of view of ontogenetic development.

The main strength of human ethology has been its application of established interpretive patterns to new problems. On the basis of theories, concepts and methods that have proved successful in animal ethology, it looks at human behavior from a new viewpoint. The essence of this is the evolutionary perspective. But since ethologists have been relatively unaffected by the long history of the humanities, they often refer to facts and interpretations neglected by other social sciences. If we look back at the history of the relationship between the life sciences and the social sciences, we find two prevailing modes of theoretical orientation: on the one hand, reductionism, i.e., attempts to reduce human action to non-cognitive behavior; and on the other, attempts to separate human action and human society completely from the animal world. The advent of the theory of evolution in the 19th century brought no easy solution to the problem of nature and nurture, since it could still be "solved" in either a continuous or discontinuous manner. Human ethology as much as any other discipline significantly contributes to the obsolescence of such simple dichotomies.

Human Ethology has an increasing influence on the dialogue between Human Sciences and Humanities as shown for example with the book Being Human - Bridging the Gap between the Sciences of Body and Mind.

Methodology

‍‍Ethologists‍‍ study behavior using two general methods: naturalistic observation and laboratory experimentation. Ethologist's insistence on observing organisms in their natural environment differentiates ethology from related disciplines such as evolutionary psychology and sociobiology, and their naturalistic observation "ranks as one of their main contributions to psychology" (Miller, 2001). Naturalistic Observation Ethologist believe that in order to study species-specific behaviors, a species must be observed in its natural environment. One can only understand the function of a behavior by seeing how it specifically fits into the ‍‍species‍‍ natural environment in order to fulfill a specific need. Ethologist follow a specific set of steps when studying an organism:

These steps fall in line with Tinbergen's (1963) "On Aims of Methods of Ethology" in which he states that all studies of behavior must answer four questions to be considered legitimate.1. function (adaptation), 2.evolution (phylogeny), 3. causation (mechanism), and 4. development (ontogeny) needed to answer in a study.

Diversity

  • Diversity is an important concept in ethology and evolutionary theory. This is true not only genetically, but culturally as well.
  • Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele. The population will continue for more generations because of the success of these individuals.
  • The academic field of population genetics includes several hypotheses and theories regarding genetic diversity. The neutral theory of evolution proposes that diversity is the result of the accumulation of neutral substitutions. Diversifying selection is the hypothesis that two subpopulations of a species live in different environments that select for different alleles at a particular locus. This may occur, for instance, if a species has a large range relative to the mobility of individuals within it.
  • Cultural diversity is also important. From a cultural transmission standpoint, humans are the only animals to pass down cumulative cultural knowledge to their offspring. While chimpanzees can learn to use tools by watching other chimps around them, but humans are able to pool their cognitive resources to create increasingly more complex solutions to problems and more complex ways of interacting with their environments.
  • The diversity of cultures points to the idea that humans are shaped by their environments, and also interact with environments to shape them as well. Cultural diversity arises from different human adaptations to different environmental factors, which in turn shapes the environment, which in turn again shapes human behavior. This cycle results in diverse cultural representations that ultimately add to the survival of the human species. This approach is important as a way to build a bridge between biological and social sciences, which creates a better understanding of human ethology.
  • One example of human diversity is sexual orientation. Ethologists have long noted that there are over 250 species of animals which display homosexual behaviors. While it seems counter-intuitive to say that this could be an adaptive trait, a closer look reveals how the genes for homosexuality can persist even if no offspring is directly created from homosexual behaviors.
  • Homosexuality could decrease competition for heterosexual mates.
  • Homosexual family members could increase the resources available to the children of their siblings without producing offspring to compete for those resources (the "gay uncle" theory), thus creating better chances for offspring to survive which share the homosexual relative's "gay genes". Thus there is a small but stable chance for future generations to be gay as well, even if the gay family member produces no direct descendants.

Instinct

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Instinct

Instinct or innate behavior is the inherent inclination of a living organism towards a particular complex behavior. The simplest example of an instinctive behavior is a fixed action pattern (FAP), in which a very short to medium length sequence of actions, without variation, are carried out in response to a corresponding clearly defined stimulus.

A baby leatherback turtle makes its way to the open ocean.

Any behavior is instinctive if it is performed without being based upon prior experience (that is, in the absence of learning), and is therefore an expression of innate biological factors. Sea turtles, newly hatched on a beach, will instinctively move toward the ocean. A marsupial climbs into its mother's pouch upon being born. Honeybees communicate by dancing in the direction of a food source without formal instruction. Other examples include animal fighting, animal courtship behavior, internal escape functions, and the building of nests. Though an instinct is defined by its invariant innate characteristics, details of its performance can be changed by experience; for example, a dog can improve its fighting skills by practice.

An instinctive behavior of shaking water from wet fur

Instincts are inborn complex patterns of behavior that exist in most members of the species, and should be distinguished from reflexes, which are simple responses of an organism to a specific stimulus, such as the contraction of the pupil in response to bright light or the spasmodic movement of the lower leg when the knee is tapped. The absence of volitional capacity must not be confused with an inability to modify fixed action patterns. For example, people may be able to modify a stimulated fixed action pattern by consciously recognizing the point of its activation and simply stop doing it, whereas animals without a sufficiently strong volitional capacity may not be able to disengage from their fixed action patterns, once activated.

Instinctual behaviour in humans has been studied, and is a controversial topic.

History

In animal biology

Jean Henri Fabre (1823-1915), an entomologist, considered instinct to be any behavior which did not require cognition or consciousness to perform. Fabre's inspiration was his intense study of insects, some of whose behaviors he wrongly considered fixed and not subject to environmental influence.

Instinct as a concept fell out of favor in the 1920s with the rise of behaviorism and such thinkers as B. F. Skinner, which held that most significant behavior is learned.

An interest in innate behaviors arose again in the 1950s with Konrad Lorenz and Nikolaas Tinbergen, who made the distinction between instinct and learned behaviors. Our modern understanding of instinctual behavior in animals owes much to their work. For instance, there exists a sensitive period for a bird in which it learns the identity of its mother. Konrad Lorenz famously had a goose imprint on his boots. Thereafter the goose would follow whoever wore the boots. This suggests that the identity of the goose's mother was learned, but the goose's behavior towards what it perceived as its mother was instinctive.

In psychology

The term "instinct" in psychology was first used in the 1870s by Wilhelm Wundt. By the close of the 19th century, most repeated behavior was considered instinctual. In a survey of the literature at that time, one researcher chronicled 4,000 human "instincts," having applied this label to any behavior that was repetitive. In the early twentieth century, there was recognized a "union of instinct and emotion".

William McDougall held that many instincts have their respective associated specific emotions. As research became more rigorous and terms better defined, instinct as an explanation for human behavior became less common. In 1932, McDougall argued that the word 'instinct' is more suitable for describing animal behaviour, while he recommended the word 'propensity' for goal directed combinations of the many innate human abilities, which are loosely and variably linked, in a way that shows strong plasticity. In a conference in 1960, chaired by Frank Beach, a pioneer in comparative psychology, and attended by luminaries in the field, the term 'instinct' was restricted in its application. During the 1960s and 1970s, textbooks still contained some discussion of instincts in reference to human behavior. By the year 2000, a survey of the 12 best selling textbooks in Introductory Psychology revealed only one reference to instincts, and that was in regard to Sigmund Freud's referral to the "id" instincts. In this sense, the term 'instinct' appeared to have become outmoded for introductory textbooks on human psychology.

Sigmund Freud considered that mental images of bodily needs, expressed in the form of desires, are called instincts.

In the 1950s, the psychologist Abraham Maslow argued that humans no longer have instincts because we have the ability to override them in certain situations. He felt that what is called instinct is often imprecisely defined, and really amounts to strong drives. For Maslow, an instinct is something which cannot be overridden, and therefore while the term may have applied to humans in the past, it no longer does.

The book Instinct: an enduring problem in psychology (1961) selected a range of writings about the topic.

In a classic paper published in 1972, the psychologist Richard Herrnstein wrote: "A comparison of McDougall's theory of instinct and Skinner's reinforcement theory — representing nature and nurture — shows remarkable, and largely unrecognized, similarities between the contending sides in the nature-nurture dispute as applied to the analysis of behavior."

F.B. Mandal proposed a set of criteria by which a behavior might be considered instinctual: a) be automatic, b) be irresistible, c) occur at some point in development, d) be triggered by some event in the environment, e) occur in every member of the species, f) be unmodifiable, and g) govern behavior for which the organism needs no training (although the organism may profit from experience and to that degree the behavior is modifiable).

In Information behavior: An Evolutionary Instinct (2010, pp. 35–42), Amanda Spink notes that "currently in the behavioral sciences instinct is generally understood as the innate part of behavior that emerges without any training or education in humans." She claims that the viewpoint that information behavior has an instinctive basis is grounded in the latest thinking on human behavior. Furthermore, she notes that "behaviors such as cooperation, sexual behavior, child rearing and aesthetics are [also] seen as 'evolved psychological mechanisms' with an instinctive basis." Spink adds that Steven Pinker similarly asserts that language acquisition is instinctive in humans in his book The Language Instinct (1994). In 1908, William McDougall wrote about the "instinct of curiosity" and its associated "emotion of wonder", though Spink's book does not mention this.

M.S. Blumberg in 2017 examined the use of the word instinct, and found it varied significantly.

In humans

The existence of simplest instincts in humans is a widely debated topic.

  1. Congenital fear of snakes and spiders was found in six-month-old babies.
  2. Infant cry is a manifestation of instinct. The infant cannot otherwise protect itself for survival during its long period of maturation. The maternal instinct, manifest particularly in response to the infant cry, has long been respected as one of the most powerful. Its mechanism has been partly elucidated by observations with functional MRI of the mother’s brain.
  3. The herd instinct is found in human children and chimpanzee cubs, but is apparently absent in the young orangutans.
  4. Testosterone (main male sex hormone) primes several instincts, especially sexuality; also dominance, manifest in self-affirmation, the urge to win over rivals (see competitiveness), to dominate a hierarchy (see dominance hierarchy), and to respond to violent signals in men (see aggression), with weakening of empathy. In men, a decrease in testosterone level after the birth of a child in the family was found, so that the father's energies are more directed to nurturing, protecting and caring for the child. Unduly high levels of this hormone are often associated in a person with aggressiveness, illegal behavior, violence against others, such phenomena as banditry, etc. This is confirmed by studies conducted in prisons. The amount of testosterone in men may increase dramatically in response to any competition.
  5. Squeamishness and disgust in humans is an instinct developed during evolution to protect the body and avoid infection by various diseases.

Reflexes

A real gecko hunts the pointer of a mouse, confused with prey.

Examples of behaviors that do not require conscious will include many reflexes. The stimulus in a reflex may not require brain activity but instead may travel to the spinal cord as a message that is then transmitted back through the body, tracing a path called the reflex arc. Reflexes are similar to fixed action patterns in that most reflexes meet the criteria of a FAP. However, a fixed action pattern can be processed in the brain as well; a male stickleback's instinctive aggression towards anything red during his mating season is such an example. Examples of instinctive behaviors in humans include many of the primitive reflexes, such as rooting and suckling, behaviors which are present in mammals. In rats, it has been observed that innate responses are related to specific chemicals, and these chemicals are detected by two organs located in the nose: the vomeronasal organ (VNO) and the main olfactory epithelium (MOE).

Maturational

Some instinctive behaviors depend on maturational processes to appear. For instance, we commonly refer to birds "learning" to fly. However, young birds have been experimentally reared in devices that prevent them from moving their wings until they reached the age at which their cohorts were flying. These birds flew immediately and normally when released, showing that their improvement resulted from neuromuscular maturation and not true learning.

In evolution

Imprinting provides one example of instinct. This complex response may involve visual, auditory, and olfactory cues in the environment surrounding an organism. In some cases, imprinting attaches an offspring to its parent, which is a reproductive benefit to offspring survival. If an offspring has attachment to a parent, it is more likely to stay nearby under parental protection. Attached offspring are also more likely to learn from a parental figure when interacting closely. (Reproductive benefits are a driving force behind natural selection.)

Environment is an important factor in how innate behavior has evolved. A hypothesis of Michael McCollough, a positive psychologist, explains that environment plays a key role in human behaviors such as forgiveness and revenge. This hypothesis theorizes that various social environments cause either forgiveness or revenge to prevail. McCollough relates his theory to game theory. In a tit-for-tat strategy, cooperation and retaliation are comparable to forgiveness and revenge. The choice between the two can be beneficial or detrimental, depending on what the partner-organism chooses. Though this psychological example of game theory does not have such directly measurable results, it provides an interesting theory of unique thought. From a more biological standpoint, the brain's limbic system operates as the main control-area for response to certain stimuli, including a variety of instinctual behavior. The limbic system processes external stimuli related to emotions, social activity, and motivation, which propagates a behavioral response. Some behaviors include maternal care, aggression, defense, and social hierarchy. These behaviors are influenced by sensory input — sight, sound, touch, and smell.

Within the circuitry of the limbic system, there are various places where evolution could have taken place, or could take place in the future. For example, many rodents have receptors in the vomeronasal organ that respond explicitly to predator stimuli that specifically relate to that individual species of rodent. The reception of a predatory stimulus usually creates a response of defense or fear. Mating in rats follows a similar mechanism. The vomeronasal organ and the main olfactory epithelium, together called the olfactory system, detect pheromones from the opposite sex. These signals then travel to the medial amygdala, which disperses the signal to a variety of brain parts. The pathways involved with innate circuitry are extremely specialized and specific. Various organs and sensory receptors play parts in this complex process.

Instinct is a phenomenon that can be investigated from a multitude of angles: genetics, limbic system, nervous pathways, and environment. Researchers can study levels of instincts, from molecular to groups of individuals. Extremely specialized systems have evolved, resulting in individuals which exhibit behaviors without learning them.

Atomic bombings of Hiroshima and Nagasaki

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