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Wednesday, June 21, 2023

Evolutionary psychology of parenting

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

Parenting, through the lens of evolutionary psychology, is largely based on traditional gender roles. It suggests that children are more attached to their mothers than fathers due to the effects of familial roles. Women have been expected to be the direct caregivers in a parent-offspring relationship, whereas men are expected to be material resource providers, possibly involved only with their own reproductive success. Females are attributed with the "maternal instinct" to aid, assist, embrace and invest in their offspring given their role as the womb. Due to not carrying the child, the male is suggested to experience paternal uncertainty, causing the individual to seek sexual partners to increase their genes amongst society.

However, males also have a role in securing a connection with the offspring by taking part in making an offspring's decisions when involved in a household. The vast evolutionary differences between direct and indirect care provided by mothers and fathers, respectively, are therefore overlooked and both parents influence the life decisions of the offspring. Different parenting styles across cultures also influence the temperament of an offspring. Additionally, varying attachment styles can influence the development of an offspring, impacting their future choices on their own mates and parenting skills.

Such parental influences lead to the theories of inclusive fitness as well as parental investment in illustrating the roots of parenting styles relayed upon offspring, such as to ensure the parents' reproductive success as well as their fitness through resources that which offspring obtain when making mating choices.

Gender differences

Female/maternal role

According to the parental investment theory, mothers are inclined to provide optimal care for their offspring due to the certainty of a genetic relationship. In regards to this, polyandry is rare in most societies as women will not take more than one husband in order to ensure the father with knowledge of the child's paternity and assistance with future care of their child from the father. Brain circuitry also evolved to favor monogamous attachment around the same time that our ancestors developed upright bipedal abilities. The development of upright movement led to the development of females caring for their children by carrying infants in their arms instead of on their backs.

Holding their infants in their arms led to greater bonds between mother and child. Upright bipedal abilities also developed stronger pairing-bonds between males and females as it became easier for males to protect just one female on the land instead of multiple females as they had done while living in trees. Natural selection favored males and females who had genes regulated towards forming pair-bonds because their young were more likely to survive, and brain circuitry gradually evolved to include attachment in parenting styles.

Women have adapted the ability to recognize infant facial expression of emotion, most especially negative emotion. This adaptation allows for the primary caretaker to develop a bond with their child leading to secure attachment during development. The "tend-and-befriend" hypothesis, which allows for the mother to care for and protect the child during detrimental situations, ensures offspring survival. Women are also able to create and maintain social networks that offer social protection for their offspring.

Grandmothers have evolved mechanisms that allow them to invest in their grandchildren. Menopause might be an adaptation for older women to invest in care of their offspring and their children's offspring. A desire to improve inclusive fitness allows grandmothers, especially maternal grandmothers, to invest the most since they are guaranteed that the child carries their genes. Aunts will also invest more than uncles. Specifically maternal aunts will invest more than paternal aunts.

Male/paternal role

Males have less investment in potential offspring and are generally less adept in their nurturing skills due to a greater emphasis on genetic reproduction, because any children that their mate births may or may not be their own. This phenomenon is termed paternal insecurity. However, "Human males do spend a lot of time investing in their kids and they invest quite heavily...That is a sharp contrast with other mammals, including our closest primate kin." Research has shown that for this reason, fathers tend to invest more resources in children that look and smell like them. Studies have demonstrated that when an infant is first born, males will experience decreased testosterone levels, making them less likely to be abusive, to commit infidelity, or seek divorce. Increased levels of investment when a child is first born may be due to the fact that males want to protect their genes and assure the reproductive success of their offspring in order for their genes to be spread.

Human fathers are involved with their family life as social connections are beneficial and alleviate access to resources. Long term monogamous relationships between parental units are necessary for children's improved development. From an evolutionary perspective, the well-being of children during their development improves the probability of reproduction for the child, and therefore the continuation of the father's genes. Evolutionary perspectives do not see the behavior of fathers who abandon their families, solely based on passing down genetic information, but also through a social perspective as father involvement is an adaptation that has been shaped by the environment and experiences.

In the modern case of divorce, fathers may feel less obliged to care for their children if guardianship of the child or children is granted to the mother, leading men to feel as if they do not need to be involved in the upbringing of their child. Remarrying, entering new romantic relationships, and having children with other women may also lead to fathers detracting from their parental investment towards their first born children. Divorced men finding new reproductive partners overrides their parental investment, as they focus on spreading their genes as widely as possible.

Parenting styles

Authoritative, authoritarian, indulgent, or neglectful parenting influences the development of children's attachment styles and their adjustment ability in order to survive and reproduce.

Authoritative parenting style is associated with the highest level of adjustment in children and is characterized by three factors. First, the parent makes age appropriate demands by insisting that the child behave in an appropriate intellectual and emotional manner. Second, the parent is rational and communicative by giving limits of appropriate behavior and communicating these underlying values to the child. Third, when the child is behaving according to the limits that are set, positive reinforcement and praise are used. Children whose parents raised them with authoritative style will have greater secure attachment leading them to be more successful in both romantic and social relationships.

Authoritarian parenting style is associated with moderately well-adjusted children. The parent lacks the communicative skills of an authoritative parent and does not convey value to the child or give proper attention when necessary. Children who were raised by parents who had authoritarian parenting skills may have greater tendency towards avoidant or insecure attachment issues. This leads them to experience decreased success in relationships and a decreased chance of reproduction.

There are two types of permissive parenting styles; indulgent and neglectful. Indulgent parents do not create proper boundaries for their children and provide them with positive reinforcement even though it is not applicable. Neglectful parents create no boundaries for their child and ignore their needs. Both indulgent and neglectful parenting styles can lead children to develop insecure attachment issues as they may feel that they cannot trust those who are around them to be loyal.

Influence on offspring in mate selection

Mating adaptations, such as competition for females, can be rooted in evolution, due to them being receivers of "scarce reproductive resources". Therefore, males' nature to involve themselves in competition can be traced to their desire to have genes passed down while using the females resources. The parent who willfully invests in their offspring, is then in control of an offspring's mating choices, specifically those of their daughters. According to Robert Triver's theory of parental investment, the parent which commits to greater investment in an offspring will have greater investment in the mate choices of their children, in order to assure that their engaged parenting will not be wasted on a mate who will not lead to successful reproduction and a loss of their genes being passed down.

Parents play a significant role in determining the offspring's future mates, with greater influence on daughters.

In the ancestral environment, parents of young women recognized the power they possessed in assisting the selection of their daughter's mate and utilizing that power (either as main resource provider or through physical intimidation) to benefit and enhance their own inclusive fitness. Not only do parents have an influence on their offspring's mating choices, they also have an influence on the sexual strategies they adopt.

According to David Buss, a father's absence in early childhood directly affects the sexual strategy that a person will adopt later on. Those who experience a lack of a fatherly role during development may develop insecure attachment expectations that parental resources are not reliable and develop the idea that adult pair bonds do not last, leading them to develop sexual strategies that involve early sexual maturation, early sexual initiation, and frequent partner switching. Those who grew up with the presence of a father or fatherly role in their life have greater secure attachment and view people as reliable and trustworthy. They believe that relationships are expected to last, therefore developing a long-term mating strategy. These people delay in sexual maturation, later onset of sexual activity, search for securely attached long-term adult relationships, and heavy investment in a small number of children.

Self-concept

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Self-concept

In the psychology of self, one's self-concept (also called self-construction, self-identity, self-perspective or self-structure) is a collection of beliefs about oneself. Generally, self-concept embodies the answer to the question "Who am I?".

The self-concept is distinguishable from self-awareness, which is the extent to which self-knowledge is defined, consistent, and currently applicable to one's attitudes and dispositions. Self-concept also differs from self-esteem: self-concept is a cognitive or descriptive component of one's self (e.g. "I am a fast runner"), while self-esteem is evaluative and opinionated (e.g. "I feel good about being a fast runner").

Self-concept is made up of one's self-schemas, and interacts with self-esteem, self-knowledge, and the social self to form the self as a whole. It includes the past, present, and future selves, where future selves (or possible selves) represent individuals' ideas of what they might become, what they would like to become, or what they are afraid of becoming. Possible selves may function as incentives for certain behaviour.

The perception people have about their past or future selves relates to their perception of their current selves. The temporal self-appraisal theory argues that people have a tendency to maintain a positive self-evaluation by distancing themselves from their negative self and paying more attention to their positive one. In addition, people have a tendency to perceive the past self less favourably (e.g. "I'm better than I used to be") and the future self more positively (e.g. "I will be better than I am now").

History

Psychologists Carl Rogers and Abraham Maslow had major influence in popularizing the idea of self-concept in the west. According to Rogers, everyone strives to reach an "ideal self." He believed that a person gets to self-actualize when they prove to themself that they are capable enough to achieve their goals and desires, but in order to attain their fullest potential, the person must have been raised in healthy surroundings which consist of "genuineness, acceptance, and empathy", however, the lack of relationships with people that have healthy personalities will stop the person from growing "like a tree without sunlight and water" and affect the individual's process to accomplish self- actualization. Rogers also hypothesized that psychologically healthy people actively move away from roles created by others' expectations, and instead look within themselves for validation. On the other hand, neurotic people have "self-concepts that do not match their experiences. They are afraid to accept their own experiences as valid, so they distort them, either to protect themselves or to win approval from others."

According to Carl Rogers, the self-concept has three different components:

Abraham Maslow applied his concept of self-actualization in his hierarchy of needs theory. In this theory, he explained the process it takes for a person to achieve self-actualization. He argues that for an individual to get to the "higher level growth needs", he must first accomplish "lower deficit needs". Once the "deficiency needs" have been achieved, the person's goal is to accomplish the next step, which is the "being needs". Maslow noticed that once individuals reach this level, they tend to "grow as a person" and reach self-actualization. However, individuals who experienced negative events while being in the lower deficit needs level prevents them from ascending in the hierarchy of needs.

The self-categorization theory developed by John Turner states that the self-concept consists of at least two "levels": a personal identity and a social one. In other words, one's self-evaluation relies on self-perceptions and how others perceive them. Self-concept can alternate rapidly between one's personal and social identity. Children and adolescents begin integrating social identity into their own self-concept in elementary school by assessing their position among peers. By age five, acceptance from peers significantly affects children's self-concept, affecting their behaviour and academic success.

Model

One's self-perception is defined by one's self-concept, self-knowledge, self-esteem, and social self.

The self-concept is an internal model that uses self-assessments in order to define one's self-schemas. Changes in self-concept can be measured by spontaneous self-report where a person is prompted by a question like "Who are you?". Often when measuring changes to the self self-evaluation, whether a person has a positive or negative opinion of oneself, is measured instead of self-concept.

Features such as personality, skills and abilities, occupation and hobbies, physical characteristics, gender, etc. are assessed and applied to self-schemas, which are ideas of oneself in a particular dimension (e.g., someone that considers themselves a geek will associate "geek-like" qualities to themselves). A collection of self-schemas makes up one's overall self-concept. For example, the statement "I am lazy" is a self-assessment that contributes to self-concept. Statements such as "I am tired", however, would not be part of someone's self-concept, since being tired is a temporary state and therefore cannot become a part of a self-schema. A person's self-concept may change with time as reassessment occurs, which in extreme cases can lead to identity crises.

Parts

Various theories identify different parts of the self include:

Development

Researchers debate over when self-concept development begins. Some assert that gender stereotypes and expectations set by parents for their children affect children's understanding of themselves by approximately age three. However, at this developmental stage, children have a very broad sense of self; typically, they use words such as big or nice to describe themselves to others. While this represents the beginnings of self-concept, others suggest that self-concept develops later, in middle childhood, alongside the development of self-control. At this point, children are developmentally prepared to interpret their own feelings and abilities, as well as receive and consider feedback from peers, teachers, and family. In adolescence, the self-concept undergoes a significant time of change. Generally, self-concept changes more gradually, and instead, existing concepts are refined and solidified. However, the development of self-concept during adolescence shows a "U"-shaped curve, in which general self-concept decreases in early adolescence, followed by an increase in later adolescence.

Romantic relationships can affect people's self-concept throughout a relationship. Self-expansion describes the addition of information to an individual's concept of self. Self-expansion can occur during relationships. Expansion of self-concept can occur during relationships, during new challenging experiences.

Additionally, teens begin to evaluate their abilities on a continuum, as opposed to the "yes/no" evaluation of children. For example, while children might evaluate themselves "smart", teens might evaluate themselves as "not the smartest, but smarter than average." Despite differing opinions about the onset of self-concept development, researchers agree on the importance of one's self-concept, which influences people's behaviors and cognitive and emotional outcomes including (but not limited to) academic achievement, levels of happiness, anxiety, social integration, self-esteem, and life-satisfaction.

Academic

Academic self-concept refers to the personal beliefs about their academic abilities or skills. Some research suggests that it begins developing from ages three to five due to influence from parents and early educators. By age ten or eleven, children assess their academic abilities by comparing themselves to their peers. These social comparisons are also referred to as self-estimates. Self-estimates of cognitive ability are most accurate when evaluating subjects that deal with numbers, such as math. Self-estimates were more likely to be poor in other areas, such as reasoning speed.

Some researchers suggest that to raise academic self-concept, parents and teachers need to provide children with specific feedback that focuses on their particular skills or abilities. Others also state that learning opportunities should be conducted in groups (both mixed-ability and like-ability) that downplay social comparison, as too much of either type of grouping can have adverse effects on children's academic self-concept and the way they view themselves in relation to their peers.

Physical

Physical self-concept is the individual's perception of themselves in areas of physical ability and appearance. Physical ability includes concepts such as physical strength and endurance, while appearance refers to attractiveness and body image. Adolescents experience significant changes in general physical self-concept at the onset of puberty, about eleven years old for girls and about 15 years old for boys. The bodily changes during puberty, in conjunction with the various psychological of this period, makes adolescence especially significant for the development of physical self-concept. An important factor of physical self-concept development is participation in physical activities. It has even been suggested that adolescent involvement in competitive sports increases physical self-concept.

Gender identity

A person's gender identity is a sense of one's own gender. These ideas typically form in young children. According to the International Encyclopedia of Marriage and Family, gender identity is developed at an early age when the child starts to communicate; by the age of eighteen months to two years is when the child begins to identify as a girl or a boy. After this stage, some consider gender identity already formed, although some consider non-gendered identities more salient during that young of an age. Kohlberg noted gender constancy occurs by the ages of five to six, a child becomes well-aware of their gender identity. Both biological and social factors may influence identities such as a sense of individuality, identities of place as well as gendered identities. As part of environmental attitudes, some suggest women more than men care about the environment. Forms of gender stereotyping is also important to consider in clinical settings. For example, a study at Kuwait University with a small sample of 102 men with gender dysphoria examined self-concept, masculinity and femininity. Findings were that children who grew up on lower family bonds had lower self-concept. Clearly, it is important to consider the context of social and political attitudes and beliefs before drawing any conclusions about gender identities in relation to personality, particularly about mental health and issues around acceptable behaviours.

Measures

Motivational properties

Self-concept can have motivational properties. There are four types of motives in particular that are most related to self-concept:

  • Self-assessment: desire to receive information about the self that is accurate
  • Self-enhancement: desire to receive feedback that informs the self of positive or desirable characteristics
  • Self-verification: desire to confirm what one already knows about the self
  • Self-improvement: desire to learn things that will help to improve the self

Some of these motives may be more prominent depending on the situation. In Western societies, the most automatic is the self-enhancement motive, and may be dominant in some situations where motives contradict one another. For example, the self-enhancement motive may contradict and dominate the self-assessment motive if one seeks out inaccurate compliments rather than honest feedback. Additionally, self-concept can motivate behavior because people tend to act in ways that reaffirm their self-concept, which is consistent with the idea of the self-verification motive. In particular, if people perceive the self a certain way and receive feedback contrary to this perception, a tension is produced that motivates them to reestablish consistency between environmental feedback and self-concept. For example, if someone believes herself to be outgoing, but someone tells her she is shy, she may be motivated to avoid that person or the environment in which she met that person because it is inconsistent with her self-concept of being an outgoing person. Further, another major motivational property of self-concept comes from the desire to eliminate the discrepancy between one's current self-concept and his or her ideal possible self. This is parallel with the idea of the self-improvement motive. For example, if one's current self-concept is that she is a novice at piano playing, though she wants to become a concert pianist, this discrepancy will generate motivation to engage in behaviors (like practicing playing piano) that will bring her closer to her ideal possible self (being a concert pianist).

Cultural differences

Worldviews about one's self in relation to others differ across and within cultures. Western cultures place particular importance on personal independence and on the expression of one's own attributes (i.e. the self is more important than the group). This is not to say those in an independent culture do not identify and support their society or culture, there is simply a different type of relationship. Non-Western cultures favor an interdependent view of the self: Interpersonal relationships are more important than one's individual accomplishments, and individuals experience a sense of oneness with the group. Such identity fusion can have positive and negative consequences. Identity fusion can give people the sense that their existence is meaningful provided the person feels included within the society (for example, in Japan, the definition of the word for self (jibun) roughly translates to "one's share of the shared life space"). Identity fusion can also harm one's self-concept because one's behaviors and thoughts must be able to change to continue to align with those of the overall group. Non-interdependent self-concepts can also differ between cultural traditions.

Additionally, one's social norms and cultural identities have a large effect on self-concept and mental well-being. When a person can clearly define their culture's norms and how those play a part in their life, that person is more likely to have a positive self-identity, leading to better self-concept and psychological welfare. One example of this is in regards to consistency. One of the social norms within a Western, independent culture is consistency, which allows each person to maintain their self-concept over time. The social norm in a non-Western, interdependent culture has a larger focus on one's ability to be flexible and to change as the group and environment change. If this social norm is not followed in either culture, this can lead to a disconnection with one's social identity, which affects personality, behavior, and overall self-concept. Buddhists emphasize the impermanence of any self-concept.

Anit Somech, an organizational psychologist and professor, who carried a small study in Israel showed that the divide between independent and interdependent self-concepts exists within cultures as well. Researchers compared mid-level merchants in an urban community with those in a kibbutz (collective community). The managers from the urban community followed the independent culture. When asked to describe themselves, they primarily used descriptions of their own personal traits without comparison to others within their group. When the independent, urban managers gave interdependent-type responses, most were focused on work or school, due to these being the two biggest groups identified within an independent culture. The kibbutz managers followed the interdependent culture. They used hobbies and preferences to describe their traits, which is more frequently seen in interdependent cultures as these serve as a means of comparison with others in their society. There was also a large focus on residence, lending to the fact they share resources and living space with the others from the kibbutz. These types of differences were also seen in a study done with Swedish and Japanese adolescents. Typically, these would both be considered non-Western cultures, but the Swedish showed more independent traits, while the Japanese followed the expected interdependent traits.

Along with viewing one's identity as part of a group, another factor that coincides with self-concept is stereotype threat. Many working names have been used for this term: stigmatization, stigma pressure, stigma vulnerability and stereotype vulnerability. The terminology that was settled upon Claude Steele and Joshua Aronson to describe this "situational predicament was 'stereotype threat.' This term captures the idea of a situational predicament as a contingency of their [marginalized] group identity, a real threat of judgment or treatment in the person's environment that went beyond any limitations within." Steele and Aronson described the idea of stereotype threat in their study of how this socio‐psychological notion affected the intellectual performance of African Americans. Steele and Aronson tested a hypothesis by administering a diagnostic exam between two different groups: African American and White students. For one group a stereotype threat was introduced while the other served as a control. The findings were that academic performance of the African American students was significantly lower than their White counterparts when a stereotype threat was perceived after controlling for intellectual ability. Since the inception by Steele and Aronson of stereotype threat, other research has demonstrated the applicability of this idea to other groups.

When one's actions could negatively influence general assumptions of a stereotype, those actions are consciously emphasized. Instead of one's individual characteristics, one's categorization into a social group is what society views objectively - which could be perceived as a negative stereotype, thus creating a threat. "The notion that stereotypes held about a particular group may create psychologically threatening situations associated with fears of confirming judgment about one's group, and in turn, inhibit learning and performance."

The presence of stereotype threat perpetuates a "hidden curriculum" that further marginalized minority groups. Hidden curriculum refers to a covert expression of prejudice where one standard is accepted as the "set and right way to do things". More specifically, the hidden curriculum is an unintended transmission of social constructs that operate in the social environment of an educational setting or classroom. In the United States' educational system, this caters to dominant culture groups in American society. "A primary source of stereotyping is often the teachers education program itself. It is in these programs that teachers learn that poor students and students of color should be expected to achieve less than their 'mainstream' counterparts." These child-deficit assumptions that are built into the program that instructs teachers and lead to inadvertently testing all students on a "mainstream" standard that is not necessarily academic and that does not account for the social values and norms of non-"mainstream" students.

For example, the model of "teacher as the formal authority" is the orthodox teaching role that has been perpetuated for many years until the 21st-century teaching model landed on the scene. As part of the 5 main teaching style proposed by Anthony Grasha, a cognitive and social psychologist until his death in 2003, the authoritarian style is described as believing that there are "correct, acceptable, and standard ways to do things".

Gender issues

Some say, girls tend to prefer one-on-one (dyadic) interaction, forming tight, intimate bonds, while boys prefer group activities. One study in particular found that boys performed almost twice as well in groups than in pairs, whereas girls did not show such a difference. In early adolescence, the variations in physical self-concepts appear slightly stronger for boys than girls. This includes self-concepts about movement, body, appearance and other physical attributes. Yet during periods of physical change such as infancy, adolescence and ageing, it is particularly useful to compare these self-concepts with measured skills before drawing broad conclusions. 

Some studies suggest self-concept of social behaviours are substantially similar with specific variations for girls and boys. For instance, girls are more likely than boys to wait their turn to speak, agree with others, and acknowledge the contributions of others. It seems boys see themselves as building larger group relationships based on shared interests, threaten, boast, and call names. In mixed-sex pairs of children aged 33 months, girls were more likely to passively watch a boy play, and boys were more likely to be unresponsive to what the girls were saying. In some cultures, such stereotypical traits are sustained from childhood to adulthood suggesting a strong influence of expectations by other people in these cultures. The key impacts of social self-concepts on social behaviours and of social behaviours on social self-concepts is a vital area of ongoing research.

In contrast, research suggest overall similarities for gender groups in self-concepts about academic work. In general, any variations are systematically gender-based yet small in terms of effect sizes. Any variations suggest overall academic self-concept are slightly stronger for men than women in mathematics, science and technology and slightly stronger for women than men about language related skills. It is important to observe there is no link between self concepts and skills [i.e., correlations about r = 0.19 are rather weak if statistically significant with large samples]. Clearly, even small variations in perceived self-concepts tend to reflect gender stereotypes evident in some cultures . In recent years, more women have been entering into the STEM field, working in predominantly mathematics, technology and science related careers. Many factors play a role in variations in gender effects on self-concept to accumulate as attitudes to mathematics and science; in particular, the impact other people's expectations rather than role-models on our self-concepts .

Media

A commonly-asked question is "why do people choose one form of media over another?" According to the Galileo Model, there are different forms of media spread throughout three-dimensional space. The closer one form of media is to another the more similar the source of media is to each other. The farther away from each form of media is in space, the least similar the source of media is. For example, mobile and cell phone are located closest in space where as newspaper and texting are farthest apart in space. The study further explained the relationship between self-concept and the use of different forms of media. The more hours per day an individual uses a form of media, the closer that form of media is to their self-concept.

Self-concept is related to the form of media most used. If one considers oneself tech savvy, then one will use mobile phones more often than one would use a newspaper. If one considers oneself old fashioned, then one will use a magazine more often than one would instant message.

In this day and age, social media is where people experience most of their communication. With developing a sense of self on a psychological level, feeling as part of a greater body such as social, emotional, political bodies can affect how one feels about themselves. If a person is included or excluded from a group, that can affect how they form their identities. Growing social media is a place for not only expressing an already formed identity, but to explore and experiment with developing identities. In the United Kingdom, a study about changing identities revealed that some people believe that partaking in online social media is the first time they have felt like themselves, and they have achieved their true identities. They also revealed that these online identities transferred to their offline identities.

A 2007 study was done on adolescents aged 12 to 18 to view the ways in which social media affects the formation of an identity. The study found that it affected the formation in three different ways: risk taking, communication of personal views, and perceptions of influences. In this particular study, risk taking behavior was engaging with strangers. When it came to communication about personal views, half of the participants reported that it was easier to express these opinions online, because they felt an enhanced ability to be creative and meaningful. When it came to other's opinions, one subject reported finding out more about themselves, like openness to experience, because of receiving differing opinions on things such as relationships.

Comparative cognition

From Wikipedia, the free encyclopedia

Comparative cognition is the comparative study of the mechanisms and origins of cognition in various species, and is sometimes seen as more general than, or similar to, comparative psychology. From a biological point of view, work is being done on the brains of fruit flies that should yield techniques precise enough to allow an understanding of the workings of the human brain on a scale appreciative of individual groups of neurons rather than the more regional scale previously used. Similarly, gene activity in the human brain is better understood through examination of the brains of mice by the Seattle-based Allen Institute for Brain Science (see link below), yielding the freely available Allen Brain Atlas. This type of study is related to comparative cognition, but better classified as one of comparative genomics. Increasing emphasis in psychology and ethology on the biological aspects of perception and behavior is bridging the gap between genomics and behavioral analysis.

In order for scientists to better understand cognitive function across a broad range of species they can systematically compare cognitive abilities between closely and distantly related species Through this process they can determine what kinds of selection pressure has led to different cognitive abilities across a broad range of animals. For example, it has been hypothesized that there is convergent evolution of the higher cognitive functions of corvids and apes, possibly due to both being omnivorous, visual animals that live in social groups. The development of comparative cognition has been ongoing for decades, including contributions from many researchers worldwide. Additionally, there are several key species used as model organisms in the study of comparative cognition.

Methodology

The aspects of animals which can reasonably be compared across species depend on the species of comparison, whether that be human to animal comparisons or comparisons between animals of varying species but near identical anatomies without a common ancestor. This comparison of cognitive trends can be observed in species across vast distances which feature similar biological features. Gross anatomical study as well as natural variation have been long considered aspects of comparative cognition.

Neurobiology

Current biological anthropology suggests that similarities in structures in the brain can, to an extent, be compared with certain aspects of behavior as their roots. However, it is difficult to quantify exactly which neuron connections are required for advanced function as opposed to basic reactionary cognitive operations, as identified in small insects or other small-brained organisms. Regardless, circuitry common to a wide quantity of organisms has been identified, suggesting a convergence at least of the evolution of common neural Behavioral plasticity which allow for common functions and trends of inherited behavior. It is possible that this is due to the size of the brain having direct correlation to the degree of function. However, it has been noted by experiments carried out on insects by Martin Giurfa in 2015, namely observing honey bees and fruit flies, which suggests that structures in the brain, regardless of size, can relate to functions and explain behavioral skills far greater than gross size can:

As in larger brains, two basic neural architectural principles of many invertebrate brains are the existence of specialized brain structures and circuits, which refer to specific sensory domains, and of higher-order integration centres, in which information pertaining to these different domains converges and is integrated, thus allowing cross-talking and information transfer. These characteristics may allow positive transfer from a set of stimulus to novel ones, even if these belong to different sensory modalities. This principle appears crucial for certain tasks such as rule learning.

To this end, recent years have instead dedicated entirely to mapping signals and pathways of the brain in order to compare across species as opposed to using brain size. Further studies in this field are ongoing, especially as the process of tracking and stimulating neuron development changes.

Key contributors

Charles Darwin

Darwin initially suggested that humans and animals have similar psychological abilities in his 1871 publication The Descent of Man and Selection in Relation to Sex, where he stated that animals also present behaviors associated with memory, emotion, and desires. To Darwin, humans and animals shared the same mental cognition to varying degrees based on their place in the evolutionary timeline. This understanding of mental continuity between animals and humans form the basis of comparative cognition.

Conwy Lloyd Morgan

In his 1894 publication An Introduction to Comparative Psychology, Morgan first postulated what would become known as Morgan's Cannon, which states that the behaviors of animals cannot be attributed to complex mechanisms when simpler mechanisms are possible. Morgan's cannon criticized the work of his predecessors for being anecdotal and anthropomorphic, and proposed that certain intellectual animal behavior is more likely to have developed through multiple cycles of trial and error rather than spontaneously through some existing intelligence. Morgan proposed that animals are capable of learning and their observed behavior is not purely the result of instinct or intrinsic mental function.

Edward J. Thorndike

E.J Thorndike measured mental capacity as an organism's ability to form associations between their actions and the consequences of said actions. In his 1898 publication Animal Intelligence: An Experimental Study of Associative Processes in Animals, Thorndike outlined his famous "puzzle box" experiments. Thorndike placed kittens inside a specialized box which contained a lever or button which, when triggered by the cat, would allow the cat to escape. Initially, the cats placed within the box would instinctively attempt to escape by randomly scratching the sides of the box. On some instances the cat would hit the lever, allowing their release. The next time this cat was placed within the box, it was able to conduct this trial and error routine again, however they were able to find the lever and release themselves more rapidly. Over multiple trials, all other behaviors that did not contribute to the cat's release were abandoned, and the cat was able to trigger the lever without error. Thorndike's observations explored the extent to which animal's were capable of forming associations and learning from previous experiences, and he concluded that the animal cognition is homologous to the human cognition. Thorndike's experiment established the field of comparative cognition and an experimental science and not simply a conceptual thought. The progressive decrease in escape time observed by Thorndike's cats lead to his development of the Law of Effect, which states that actions and behaviors conducted by the organism which result in a benefit to the organism are more likely to be repeated.

Graph demonstrating the decreasing of response time observed in Thorndike's "puzzle-box" experiments

Ivan Pavlov

During his studies of digestive secretions in dogs, Pavlov recognized that the animals would begin to salivate as if in response to the presence of food, even when food has yet to be presented. He observed that the dogs have begun to associate the presence of the assistant carrying the food bowls with receiving food, and would salivate regardless of whether the food bowls would be given to them for feeding. He observed that the dogs has begun to associate the presence of the assistant carrying the food bowls with receiving food, and would salivate regardless of whether the food bowls would be given to them for feeding. Through this observation, Pavlov postulated that it may be possible to create novel response arcs, in which a previously neutral stimulus can be associated with an unconditioned stimulus, and will then trigger a similar or identical response as the initial response to the unconditioned stimulus. The development of this response to a previously unknown stimuli became known as classical conditioning, and established that animal behavior is affected by the environmental conditions.

Burrhus Frederic Skinner

In his 1938 publication The Behavior of Organisms, B.F. Skinner coined the term operant conditioning to refer to the modification or development of specific voluntary behavior through the use of reinforcement and punishment. Reinforcement describes a stimulus which strengthens the likelihood of a behavior being repeated, while punishment describes a stimulus which weakens the likelihood of a behavior being repeated. Skinner designed his operant conditioning chamber, or "Skinner box", and used it to test the effects of reinforcement and punishment on voluntary behaviors.  B.F. Skinner's observations extended the understanding of the Law of Effect presented by Thorndike to include the conditioning of responses through negative stimuli. Similar to Thorndike's "puzzle-box", Skinner's experiments demonstrated that when a voluntary behavior is met with a benefit, such as food, the behavior is more likely to be repeated. Skinner also demonstrated that when a voluntary behavior is met with a punishments', such as an electric shock, the behavior is less likely to be repeated.

Skinner further expanded his experiments to include negative and positive reinforcements and punishments. Positive reinforcements and punishments' involve the introduction of a positive stimulus or a negative stimulus respectively. Negative reinforcements and punishments involve the removal of negative stimulus or a positive stimulus respectively.

Apparatus of the operant conditioning chamber, or "Skinner box", as designed by B.F. Skinner

Wolfgang Kohler

Kohler criticized the work of Thorndike and Pavlov for emphasizing the mechanical approach to behavior while ignoring the cognitive approach. He opposed the suggestion that animals learn by simple trial and error, rather they learned through perception and insight. Kohler argued that Thorndike's puzzle-boxes presented no other method of escape except the method presented by the experiment as "correct", and in doing-so the cognitive problem solving abilities of the animal are rendered useless. He suggested that if the subjects were able to observe the apparatus itself, they would be able to deduce methods of escape by perceiving the situation and the environment. Kohler's views were influenced by the observations he made when studying the behaviors of chimpanzees in Tenerife, Spain. Kohler noted that the primates were capable of insight, utilizing various familiar objects from their environment to solve complex problems, such as utilizing tools to reach out of reach items.

Karl Von Frisch

Bee "waggle dance" indicating direction and distance of nearby food source, as observed by Karl von Frisch

Karl von Frisch studied the "waggle dances" of bee populations. When foraging bees returned to the hive from a food source, they would perform complex, figure eight patterns. Through these observations, von Frisch established that bees were not only capable of recalling spatial memories, but were also able to communicate these memories to other members of the species symbolically. His research also established that other bees were capable of interpreting the information and apply it to their environment and behaviors.

Allen and Beatrix Gardner

The Gardners are famously known for their raising of Washoe the chimpanzee, and their teaching of American Sign Language to Washoe. Researchers have long questioned whether primates, the evolutionary cousins of humans, could be taught to communicate through human speech. While communication through verbal language is not possible, it was hypothesized that sign language could be utilized. The Gardners designed a specialized method which they referred to as cross-fostering, in which they raised Washoe from infancy in a human cultural and social environment, allowing for a comparative analysis of language acquisition in human children and primates. After 51 months of teaching, the Gardners reported that Washoe has 132 signs. Through the methods of the Gardners, Washoe was able to learn to communicate in American sign language, and demonstrated the ability to create novel signs for new factors introduced to her environment. In one instance, Washoe described a Brazil nut, an object whose name she was not familiar with, by signing "rock" and "berry", and continued to refer to the Brazil nut in this way. Washoe also learned how to communicate new information to her handlers. For example, after being asked what was wrong, Washoe was able to indicate a feeling of sickness by signing "hurt" near her stomach. It was later shown that she had contracted an intestinal flu. In another, Washoe had lost a toy and successfully told her handlers of its location and asked for them to retrieve it for her. The Gardners' studies proved that primates are capable of language acquisition, as well as language development and expression of private information through the use of a language similar to human communication.

Model organisms

Canines

Famously used in Ivan Pavlov's classical conditioning experiments, members of the canine family have long been considered a primary model organism for comparative cognition studies. Many other psychologists have utilized canines in their studies. C.L. Morgan referred to his terrier Tony when developing his Cannon, and Thorndike recreated his puzzle-box experiments with dogs as well. Members of this family have been domesticated for much of human history, and in many instances the behaviors of humans have co-evolved alongside these domesticated dogs. It has been hypothesized that this evolutionary relationship between humans and dogs has contributed to the development of complex cognitive behaviors that can be used to study the unique cognitive abilities of canines.

Felines

As another historical companion to humans, felines have co-evolved along with the human species. Use of felines in the study of comparative cognition is most associated with the work of Thorndike and his puzzle-boxes.

Rodents

Rodents such as various species of rats have been used in the experiments of B.F Skinner, as well as others studying comparative cognition, due to the abundance of cognitive similarity between rodents and humans. It has been shown that rodents, specifically rats, and humans present similar memorization and mnemonic processes, as both humans and rodents display primacy and recency effects when tasked with the recollection of numbered items. There is also evidence to support that both rats and humans share similar attentional processes, as they are both able to demonstrate sustained, selective and divided attention.

Corvids

Corvids have received a lot of attention from the comparative cognition community in the twenty-first century, specifically the species of corvids known as New Caledonian crows. Several populations of this species, located on islands in the New Caledonian archipelago have demonstrated the ability to create and utilize tools to manipulate their environment for their benefit. These crows were observed to modify the ribs of palm leaves by nibbling the ends to resemble a hook, and proceeded to use these tools to reach prey and food in previously inaccessible areas, such as small cracks within trees. It has also been observed that this technique of creating tools has been passed onto future generations.

Cognition

From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Cognition
 
A cognitive model illustrated by Robert Fludd
A cognitive model, as illustrated by Robert Fludd (1619)

Cognition is the "mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, imagination, intelligence, the formation of knowledge, memory and working memory, judgment and evaluation, reasoning and computation, problem-solving and decision-making, comprehension and production of language. Cognitive processes use existing knowledge and discover new knowledge.

Cognitive processes are analyzed from different perspectives within different contexts, notably in the fields of linguistics, musicology, anesthesia, neuroscience, psychiatry, psychology, education, philosophy, anthropology, biology, systemics, logic, and computer science. These and other approaches to the analysis of cognition (such as embodied cognition) are synthesized in the developing field of cognitive science, a progressively autonomous academic discipline.

Etymology

The word cognition dates back to the 15th century, where it meant "thinking and awareness". The term comes from the Latin noun cognitio ('examination', 'learning', or 'knowledge'), derived from the verb cognosco, a compound of con ('with') and gnōscō ('know'). The latter half, gnōscō, itself is a cognate of a Greek verb, gi(g)nósko (γι(γ)νώσκω, 'I know,' or 'perceive').

Early studies

Despite the word cognitive itself dating back to the 15th century, attention to cognitive processes came about more than eighteen centuries earlier, beginning with Aristotle (384–322 BC) and his interest in the inner workings of the mind and how they affect the human experience. Aristotle focused on cognitive areas pertaining to memory, perception, and mental imagery. He placed great importance on ensuring that his studies were based on empirical evidence, that is, scientific information that is gathered through observation and conscientious experimentation. Two millennia later, the groundwork for modern concepts of cognition was laid during the Enlightenment by thinkers such as John Locke and Dugald Stewart who sought to develop a model of the mind in which ideas were acquired, remembered and manipulated.

During the early nineteenth century cognitive models were developed both in philosophy—particularly by authors writing about the philosophy of mind—and within medicine, especially by physicians seeking to understand how to cure madness. In Britain, these models were studied in the academy by scholars such as James Sully at University College London, and they were even used by politicians when considering the national Elementary Education Act of 1870.

As psychology emerged as a burgeoning field of study in Europe, whilst also gaining a following in America, scientists such as Wilhelm Wundt, Herman Ebbinghaus, Mary Whiton Calkins, and William James would offer their contributions to the study of human cognition.

Early theorists

Wilhelm Wundt (1832–1920) emphasized the notion of what he called introspection: examining the inner feelings of an individual. With introspection, the subject had to be careful to describe their feelings in the most objective manner possible in order for Wundt to find the information scientific. Though Wundt's contributions are by no means minimal, modern psychologists find his methods to be too subjective and choose to rely on more objective procedures of experimentation to make conclusions about the human cognitive process.

Hermann Ebbinghaus (1850–1909) conducted cognitive studies that mainly examined the function and capacity of human memory. Ebbinghaus developed his own experiment in which he constructed over 2,000 syllables made out of nonexistent words (for instance, 'EAS'). He then examined his own personal ability to learn these non-words. He purposely chose non-words as opposed to real words to control for the influence of pre-existing experience on what the words might symbolize, thus enabling easier recollection of them. Ebbinghaus observed and hypothesized a number of variables that may have affected his ability to learn and recall the non-words he created. One of the reasons, he concluded, was the amount of time between the presentation of the list of stimuli and the recitation or recall of the same. Ebbinghaus was the first to record and plot a "learning curve" and a "forgetting curve". His work heavily influenced the study of serial position and its effect on memory (discussed further below).

Mary Whiton Calkins (1863–1930) was an influential American pioneer in the realm of psychology. Her work also focused on human memory capacity. A common theory, called the recency effect, can be attributed to the studies that she conducted. The recency effect, also discussed in the subsequent experiment section, is the tendency for individuals to be able to accurately recollect the final items presented in a sequence of stimuli. Calkin's theory is closely related to the aforementioned study and conclusion of the memory experiments conducted by Hermann Ebbinghaus.

William James (1842–1910) is another pivotal figure in the history of cognitive science. James was quite discontent with Wundt's emphasis on introspection and Ebbinghaus' use of nonsense stimuli. He instead chose to focus on the human learning experience in everyday life and its importance to the study of cognition. James' most significant contribution to the study and theory of cognition was his textbook Principles of Psychology which preliminarily examines aspects of cognition such as perception, memory, reasoning, and attention.

René Descartes (1596–1650) was a seventeenth-century philosopher who came up with the phrase "Cogito, ergo sum", which means "I think, therefore I am." He took a philosophical approach to the study of cognition and the mind, with his Meditations he wanted people to meditate along with him to come to the same conclusions as he did but in their own free cognition.

Psychology

Diagram
When the mind makes a generalization such as the concept of tree, it extracts similarities from numerous examples; the simplification enables higher-level thinking (abstract thinking).
 

In psychology, the term "cognition" is usually used within an information processing view of an individual's psychological functions, and such is the same in cognitive engineering. In the study of social cognition, a branch of social psychology, the term is used to explain attitudes, attribution, and group dynamics. However, psychological research within the field of cognitive science has also suggested an embodied approach to understanding cognition. Contrary to the traditional computationalist approach, embodied cognition emphasizes the body's significant role in the acquisition and development of cognitive capabilities.

Human cognition is conscious and unconscious, concrete or abstract, as well as intuitive (like knowledge of a language) and conceptual (like a model of a language). It encompasses processes such as memory, association, concept formation, pattern recognition, language, attention, perception, action, problem solving, and mental imagery. Traditionally, emotion was not thought of as a cognitive process, but now much research is being undertaken to examine the cognitive psychology of emotion; research is also focused on one's awareness of one's own strategies and methods of cognition, which is called metacognition. The concept of cognition has gone through several revisions through the development of disciplines within psychology.

Psychologists initially understood cognition governing human action as information processing. This was a movement known as cognitivism in the 1950s, emerging after the Behaviorist movement viewed cognition as a form of behavior. Cognitivism approached cognition as a form of computation, viewing the mind as a machine and consciousness as an executive function. However; post cognitivism began to emerge in the 1990s as the development of cognitive science presented theories that highlighted the necessity of cognitive action as embodied, extended, and producing dynamic processes in the mind. The development of Cognitive psychology arose as psychology from different theories, and so began exploring these dynamics concerning mind and environment, starting a movement from these prior dualist paradigms that prioritized cognition as systematic computation or exclusively behavior.

Piaget's theory of cognitive development

For years, sociologists and psychologists have conducted studies on cognitive development, i.e. the construction of human thought or mental processes.

Jean Piaget was one of the most important and influential people in the field of developmental psychology. He believed that humans are unique in comparison to animals because we have the capacity to do "abstract symbolic reasoning". His work can be compared to Lev Vygotsky, Sigmund Freud, and Erik Erikson who were also great contributors in the field of developmental psychology. Today, Piaget is known for studying the cognitive development in children, having studied his own three children and their intellectual development, from which he would come to a theory of cognitive development that describes the developmental stages of childhood.

Stage Age or Period Description
Sensorimotor stage Infancy (0–2 years) Intelligence is present; motor activity but no symbols; knowledge is developing yet limited; knowledge is based on experiences/ interactions; mobility allows the child to learn new things; some language skills are developed at the end of this stage. The goal is to develop object permanence, achieving a basic understanding of causality, time, and space.
Preoperational stage Toddler and Early Childhood (2–7 years) Symbols or language skills are present; memory and imagination are developed; non-reversible and non-logical thinking; shows intuitive problem solving; begins to perceive relationships; grasps the concept of conservation of numbers; predominantly egocentric thinking.
Concrete operational stage Elementary and Early Adolescence (7–12 years) Logical and systematic form of intelligence; manipulation of symbols related to concrete objects; thinking is now characterized by reversibility and the ability to take the role of another; grasps concepts of the conservation of mass, length, weight, and volume; predominantly operational thinking; nonreversible and egocentric thinking
Formal operational stage Adolescence and Adulthood (12 years and on) Logical use of symbols related to abstract concepts; Acquires flexibility in thinking as well as the capacities for abstract thinking and mental hypothesis testing; can consider possible alternatives in complex reasoning and problem-solving.

Common types of tests on human cognition

Serial position

The serial position experiment is meant to test a theory of memory that states that when information is given in a serial manner, we tend to remember information at the beginning of the sequence, called the primacy effect, and information at the end of the sequence, called the recency effect. Consequently, information given in the middle of the sequence is typically forgotten, or not recalled as easily. This study predicts that the recency effect is stronger than the primacy effect, because the information that is most recently learned is still in working memory when asked to be recalled. Information that is learned first still has to go through a retrieval process. This experiment focuses on human memory processes.

Word superiority

The word superiority experiment presents a subject with a word, or a letter by itself, for a brief period of time, i.e. 40 ms, and they are then asked to recall the letter that was in a particular location in the word. In theory, the subject should be better able to correctly recall the letter when it was presented in a word than when it was presented in isolation. This experiment focuses on human speech and language.

Brown–Peterson

In the Brown–Peterson experiment, participants are briefly presented with a trigram and in one particular version of the experiment, they are then given a distractor task, asking them to identify whether a sequence of words is in fact words, or non-words (due to being misspelled, etc.). After the distractor task, they are asked to recall the trigram from before the distractor task. In theory, the longer the distractor task, the harder it will be for participants to correctly recall the trigram. This experiment focuses on human short-term memory.

Memory span

During the memory span experiment, each subject is presented with a sequence of stimuli of the same kind; words depicting objects, numbers, letters that sound similar, and letters that sound dissimilar. After being presented with the stimuli, the subject is asked to recall the sequence of stimuli that they were given in the exact order in which it was given. In one particular version of the experiment, if the subject recalled a list correctly, the list length was increased by one for that type of material, and vice versa if it was recalled incorrectly. The theory is that people have a memory span of about seven items for numbers, the same for letters that sound dissimilar and short words. The memory span is projected to be shorter with letters that sound similar and with longer words.

Visual search

In one version of the visual search experiment, a participant is presented with a window that displays circles and squares scattered across it. The participant is to identify whether there is a green circle on the window. In the featured search, the subject is presented with several trial windows that have blue squares or circles and one green circle or no green circle in it at all. In the conjunctive search, the subject is presented with trial windows that have blue circles or green squares and a present or absent green circle whose presence the participant is asked to identify. What is expected is that in the feature searches, reaction time, that is the time it takes for a participant to identify whether a green circle is present or not, should not change as the number of distractors increases. Conjunctive searches where the target is absent should have a longer reaction time than the conjunctive searches where the target is present. The theory is that in feature searches, it is easy to spot the target, or if it is absent, because of the difference in color between the target and the distractors. In conjunctive searches where the target is absent, reaction time increases because the subject has to look at each shape to determine whether it is the target or not because some of the distractors if not all of them, are the same color as the target stimuli. Conjunctive searches where the target is present take less time because if the target is found, the search between each shape stops.

Knowledge representation

The semantic network of knowledge representation systems have been studied in various paradigms. One of the oldest paradigms is the leveling and sharpening of stories as they are repeated from memory studied by Bartlett. The semantic differential used factor analysis to determine the main meanings of words, finding that value or "goodness" of words is the first factor. More controlled experiments examine the categorical relationships of words in free recall. The hierarchical structure of words has been explicitly mapped in George Miller's Wordnet. More dynamic models of semantic networks have been created and tested with neural network experiments based on computational systems such as latent semantic analysis (LSA), Bayesian analysis, and multidimensional factor analysis. The semantics (meaning) of words is studied by all the disciplines of cognitive science.

Metacognition

Metacognition is an awareness of one's thought processes and an understanding of the patterns behind them. The term comes from the root word meta, meaning "beyond", or "on top of". Metacognition can take many forms, such as reflecting on one's ways of thinking and knowing when and how to use particular strategies for problem-solving. There are generally two components of metacognition: (1) knowledge about cognition and (2) regulation of cognition. A metacognitive model differs from other scientific models in that the creator of the model is per definition also enclosed within it. Scientific models are often prone to distancing the observer from the object or field of study whereas a metacognitive model in general tries to include the observer in the model.

Metamemory, defined as knowing about memory and mnemonic strategies, is an especially important form of metacognition. Academic research on metacognitive processing across cultures is in the early stages, but there are indications that further work may provide better outcomes in cross-cultural learning between teachers and students.

Writings on metacognition date back at least as far as two works by the Greek philosopher Aristotle (384–322 BC): On the Soul and the Parva Naturalia.

Improving cognition

Physical exercise

Aerobic and anaerobic exercise have been studied concerning cognitive improvement. There appear to be short-term increases in attention span, verbal and visual memory in some studies. However, the effects are transient and diminish over time, after cessation of the physical activity. People with Parkinson's disease have also seen improved cognition while cycling, while pairing it with other cognitive tasks.

Dietary supplements

Studies evaluating phytoestrogen, blueberry supplementation and antioxidants showed minor increases in cognitive function after supplementation but no significant effects compared to placebo. Another study on the effects of herbal and dietary supplements on cognition in menopause show that soy and Gingko biloba supplementation could improve women's cognition.

Pleasurable social stimulation

Exposing individuals with cognitive impairment (i.e., Dementia) to daily activities designed to stimulate thinking and memory in a social setting, seems to improve cognition. Although study materials are small, and larger studies need to confirm the results, the effect of social cognitive stimulation seems to be larger than the effects of some drug treatments.

Other methods

Transcranial magnetic stimulation (TMS) has been shown to improve cognition in individuals without dementia 1 month after treatment session compared to before treatment. The effect was not significantly larger compared to placebo. Computerized cognitive training, utilising a computer based training regime for different cognitive functions has been examined in a clinical setting but no lasting effects has been shown.

Politics of Europe

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