Search This Blog

Tuesday, November 15, 2022

Charles Fourier

From Wikipedia, the free encyclopedia
 
Charles Fourier
Françoise Foliot - Jean Gigoux - Portrait de Charles Fourrier (cropped) (1).jpg
Portrait by Jean Gigoux, 1835 (detail)
Born
François Marie Charles Fourier

7 April 1772
Died10 October 1837 (aged 65)

Era19th-century philosophy
RegionWestern philosophy
SchoolUtopian socialism
Fourierism
Main interests
Political philosophy
Economics
Philosophy of desire
Notable ideas
Phalanstère
"Attractive work"

François Marie Charles Fourier (/ˈfʊri, -iər/;French: [ʃaʁl fuʁje]; 7 April 1772 – 10 October 1837) was a French philosopher, an influential early socialist thinker and one of the founders of utopian socialism. Some of Fourier's social and moral views, held to be radical in his lifetime, have become mainstream thinking in modern society. For instance, Fourier is credited with having originated the word feminism in 1837.

Fourier's social views and proposals inspired a whole movement of intentional communities. Among them in the United States were the community of Utopia, Ohio; La Reunion near present-day Dallas, Texas; Lake Zurich, Illinois; the North American Phalanx in Red Bank, New Jersey; Brook Farm in West Roxbury, Massachusetts; the Community Place and Sodus Bay Phalanx in New York State; Silkville, Kansas, and several others. In Guise, France, he influenced the Familistery of Guise [fr; de; pt]. Fourier later inspired a diverse array of revolutionary thinkers and writers.

Life

Fourier was born in Besançon, France on 7 April 1772. The son of a small businessman, Fourier was more interested in architecture than in his father's trade. He wanted to become an engineer, but the local military engineering school accepted only sons of noblemen. Fourier later said he was grateful that he did not pursue engineering, because it would have consumed too much of his time and taken away from his true desire to help humanity.

When his father died in 1781, Fourier received two-fifths of his father's estate, valued at more than 200,000 francs. This inheritance enabled Fourier to travel throughout Europe at his leisure. In 1791 he moved from Besançon to Lyon, where he was employed by the merchant M. Bousquet. Fourier's travels also brought him to Paris, where he worked as the head of the Office of Statistics for a few months. From 1791 to 1816 Fourier was employed in Paris, Rouen, Lyon, Marseille, and Bordeaux. As a traveling salesman and correspondence clerk, his research and thought was time-limited: he complained of "serving the knavery of merchants" and the stupefaction of "deceitful and degrading duties."

He began writing. His first book was published in 1808, but it only sold a few copies. Surprisingly, after six years, the book fell into the hands of Monsieur Just Muiron who eventually became Fourier's patron. Fourier produced most of his writings between 1816 and 1821. In 1822, he tried to sell his books again but with no success.

Fourier died in Paris in 1837.

Ideas

Fourier declared that concern and cooperation were the secrets of social success. He believed that a society that cooperated would see an immense improvement in their productivity levels. Workers would be recompensed for their labors according to their contribution. Fourier saw such cooperation occurring in communities he called "phalanxes," based upon structures called Phalanstères or "grand hotels". These buildings were four-level apartment complexes where the richest had the uppermost apartments and the poorest had a ground-floor residence. Wealth was determined by one's job; jobs were assigned based on the interests and desires of the individual. There were incentives: jobs people might not enjoy doing would receive higher pay. Fourier considered trade, which he associated with Jews, to be the "source of all evil" and advocated that Jews be forced to perform farm work in the phalansteries. By the end of his life, Fourier advocated the return of Jews to Palestine with the assistance of the Rothschilds. John K. Roth and Richard L. Rubenstein have seen Fourier as motivated by economic and religious antisemitism, rather than the racial antisemitism that would emerge later in the century.

Attack on civilization

Fourier characterized poverty (not inequality) as the principal cause of disorder in society, and he proposed to eradicate it by sufficiently high wages and by a "decent minimum" for those who were not able to work. Fourier used the word civilization in a negative sense and as such "Fourier's contempt for the respectable thinkers and ideologies of his age was so intense that he always used the terms philosopher and civilization in a pejorative sense. In his lexicon civilization was a depraved order, a synonym for perfidy and constraint ... Fourier's attack on civilization had qualities not to be found in the writing of any other social critic of his time."

Work and liberated passions

For Herbert Marcuse "The idea of libidinal work relations in a developed industrial society finds little support in the tradition of thought, and where such support is forthcoming it seems of a dangerous nature. The transformation of labor into pleasure is the central idea in Fourier's giant socialist utopia."

Fourier insists that this transformation requires a complete change in the social institutions: distribution of the social product according to need, assignment of functions according to individual faculties and inclinations, constant mutation of functions, short work periods, and so on. But the possibility of "attractive labor" (travail attrayant) derives above all from the release of libidinal forces . Fourier assumes the existence of an attraction industrielle which makes for pleasurable co-operation. It is based on the attraction passionnée in the nature of man, which persists despite the opposition of reason, duty, prejudice. This attraction passionnée tends toward three principal objectives: the creation of "luxury, or the pleasure of the five senses"; the formation of libidinal groups (of friendship and love); and the establishment of a harmonious order, organizing these groups for work in accordance with the development of the individual "passions" (internal and external "play" of faculties).

He believed that there were twelve common passions which resulted in 810 types of character, so the ideal phalanx would have exactly 1620 people. One day there would be six million of these, loosely ruled by a world "omniarch", or (later) a World Congress of Phalanxes. He had a concern for the sexually rejected; jilted suitors would be led away by a corps of fairies who would soon cure them of their lovesickness, and visitors could consult the card-index of personality types for suitable partners for casual sex. He also defended homosexuality as a personal preference for some people. Anarchist Hakim Bey describes Fourier's ideas as follows:

In Fourier's system of Harmony all creative activity including industry, craft, agriculture, etc. will arise from liberated passion—this is the famous theory of "attractive labor." Fourier sexualizes work itself—the life of the Phalanstery is a continual orgy of intense feeling, intellection, & activity, a society of lovers & wild enthusiasts.

Women's rights

Fourier was also a supporter of women's rights in a time period when influences like Jean-Jacques Rousseau were prevalent. Fourier believed that all important jobs should be open to women on the basis of skill and aptitude rather than closed on account of gender. He spoke of women as individuals, not as half the human couple. Fourier saw that "traditional" marriage could potentially hurt woman's rights as human beings and thus never married. Writing before the advent of the term 'homosexuality', Fourier held that both men and women have a wide range of sexual needs and preferences which may change throughout their lives, including same-sex sexuality and androgénité. He argued that all sexual expressions should be enjoyed as long as people are not abused, and that "affirming one's difference" can actually enhance social integration.

Fourier's concern was to liberate every human individual, man, woman, and child, in two senses: education and the liberation of human passion.

Children and education

On education, Fourier felt that "civilized" parents and teachers saw children as little idlers. Fourier felt that this way of thinking was wrong. He felt that children as early as age two and three were very industrious. He listed the dominant tastes in all children to include, but not limited to:

  1. Rummaging or inclination to handle everything, examine everything, look through everything, to constantly change occupations;
  2. Industrial commotion, taste for noisy occupations;
  3. Aping or imitative mania.
  4. Industrial miniature, a taste for miniature workshops.
  5. Progressive attraction of the weak toward the strong.

Fourier was deeply disturbed by the disorder of his time and wanted to stabilize the course of events which surrounded him. Fourier saw his fellow human beings living in a world full of strife, chaos, and disorder.

Fourier is best remembered for his writings on a new world order based on unity of action and harmonious collaboration.[4] He is also known for certain Utopian pronouncements, such as that the seas would lose their salinity and turn to lemonade, and a coincidental view of climate change, that the North Pole would be milder than the Mediterranean in a future phase of Perfect Harmony.

Perspective view of Fourier's Phalanstère

Influence

The influence of Fourier's ideas in French politics was carried forward into the 1848 Revolution and the Paris Commune by followers such as Victor Considerant.

  • Numerous references to Fourierism appear in Dostoevsky's political novel Demons first published in 1872.
  • Fourier's ideas also took root in America, with his followers starting phalanxes throughout the country, including one of the most famous, Utopia, Ohio.
  • Peter Kropotkin, in the preface to his book The Conquest of Bread, considered Fourier to be the founder of the libertarian branch of socialist thought, as opposed to the authoritarian socialist ideas of Babeuf and Buonarroti.
  • In the mid-20th century, Fourier's influence began to rise again among writers reappraising socialist ideas outside the Marxist mainstream. After the Surrealists had broken with the French Communist Party, André Breton returned to Fourier, writing Ode à Charles Fourier in 1947.
  • Walter Benjamin considered Fourier crucial enough to devote an entire "konvolut" of his massive, projected book on the Paris arcades, the Passagenwerk, to Fourier's thought and influence. He writes: "To have instituted play as the canon of a labor no longer rooted in exploitation is one of the great merits of Fourier", and notes that "Only in the summery middle of the nineteenth century, only under its sun, can one conceive of Fourier's fantasy materialized."
  • Herbert Marcuse in his influential work Eros and Civilization praised Fourier saying that "Fourier comes closer than any other utopian socialist to elucidating the dependence of freedom on non-repressive sublimation."
  • In 1969, Raoul Vaneigem quoted and adapted Fourier's Avis aux civilisés relativement à la prochaine métamorphose sociale in his text Avis aux civilisés relativement à l'autogestion généralisée.
North American Phalanx building in New Jersey
  • Fourier's work has significantly influenced the writings of Gustav Wyneken, Guy Davenport (in his work of fiction Apples and Pears), Peter Lamborn Wilson, and Paul Goodman.
  • In Whit Stillman's film Metropolitan, the idealistic Tom Townsend describes himself as a Fourierist, and debates the success of social experiment Brook Farm with another of the characters. Bidding him goodnight, Sally Fowler says, "Good luck with your furrierism." [sic]
  • David Harvey, in the appendix to his book Spaces of Hope, offers a personal utopian vision of the future in cities citing Fourier's ideas.
  • Libertarian socialist and environmentalist thinker Murray Bookchin wrote that "The Greek ideal of the rounded citizen in a rounded environment — one that reappeared in Charles Fourier’s utopian works — was long cherished by the anarchists and socialists of the last century...The opportunity of the individual to devote his or her productive activity to many different tasks over an attenuated work week (or in Fourier’s ideal society, over a given day) was seen as a vital factor in overcoming the division between manual and intellectual activity, in transcending status differences that this major division of work created, and in enhancing the wealth of experiences that came with a free movement from industry through crafts to food cultivation."
  • Nathaniel Hawthorne in Chapter 7 of his novel The Blithedale Romance gently mocks Fourier, saying

    "When, as a consequence of human improvement", said I, "the globe shall arrive at its final perfection, the great ocean is to be converted into a particular kind of lemonade, such as was fashionable at Paris in Fourier's time. He calls it limonade a cedre. It is positively a fact! Just imagine the city docks filled, every day, with a flood tide of this delectable beverage!"

  • Writers of the post-left anarchy tendency have praised the writings of Fourier. Bob Black in his work The Abolition of Work advocates Fourier's idea of attractive work as a solution to his criticisms of work conditions in contemporary society. Hakim Bey manifested that Fourier "lived at the same time as De Sade & (William) Blake, & deserves to be remembered as their equal or even superior. Those other two apostles of freedom & desire had no political disciples, but in the middle of the 19th century literally hundreds of communes (phalansteries) were founded on fourierist principles".

In popular culture

In the movie Metropolitan, one of the main characters, Tom Townsend, mentions "I favor the socialist model developed by the 19th-century French social critic Charles Fourier".

Fourier's works

  • Fourier, Charles. Théorie des quatre mouvements et des destinées générales (Theory of the four movements and the general destinies), appeared anonymously in Lyon in 1808.
  • Fourier, Charles. Le Nouveau Monde amoureux. Written 1816–18, not published widely until 1967.
  • Fourier, Ch. Œuvres complètes de Ch. Fourier. 6 tomes. Paris: Librairie Sociétaire, 1841-1848.
  • Fourier, Charles. La Fausse Industrie Morcelée, Répugnante, Mensongère, et L'Antidote, L'Industrie Naturelle, Combinée, Attrayante, Vérdique, donnant quadruple produit (False Industry, Fragmented, Repugnant, Lying and the Antidote, Natural Industry, Combined, Attractive, True, giving four times the product), Paris: Bossange. 1835.
  • Fourier, Charles. Oeuvres complètes de Charles Fourier. 12 vols. Paris: Anthropos, 1966–1968.
  • Jones, Gareth Stedman, and Ian Patterson, eds. Fourier: The Theory of the Four Movements. Cambridge Texts in the History of Political Thought. Cambridge: Cambridge UP, 1996.
  • Fourier, Charles. Design for Utopia: Selected Writings. Studies in the Libertarian and Utopian Tradition. New York: Schocken, 1971. ISBN 0-8052-0303-6
  • Poster, Mark, ed. Harmonian Man: Selected Writings of Charles Fourier. Garden City: Doubleday. 1971.
  • Beecher, Jonathan and Richard Bienvenu, eds. The Utopian Vision of Charles Fourier: Selected Texts on Work, Love, and Passionate Attraction. Boston: Beacon Press, 1971.
  • Wilson, Peter Lamborn, Escape from the Nineteenth Century and Other Essays. Brooklyn: Autonomedia, 1998.

Empathy quotient

From Wikipedia, the free encyclopedia
 
Empathy quotient
Purposemeasure of empathy

Empathy quotient (EQ) is a psychological self-report measure of empathy developed by Simon Baron-Cohen and Sally Wheelwright at the Autism Research Centre at the University of Cambridge. EQ is based on a definition of empathy that includes cognition and affect.

According to the authors of the measure, empathy is a combination of the ability to feel an appropriate emotion in response to another's emotion and the ability to understand anothers' emotion (this is associated with the theory of mind). EQ was designed to fill a measurement gap by measuring empathy exclusively; other measures such as the Questionnaire Measure of Emotional Empathy and the Empathy Scale have multiple factors that are uncorrelated with empathy but are associated with social skills or the ability to be emotionally aroused in general. EQ tests the empathizing–systemizing theory, a theory that places individuals in different brain-type categories based on their tendencies toward empathy and system creation, and that was intended to determine clinically the role of lack of empathy in psychopathology, and in particular to screen for autism spectrum disorder.

Format and scoring

The EQ consists of 60 items: 40 items relating to empathy and 20 control items. "On each empathy item a person can score 2, 1, or 0." A 40-item version of the test containing only the relevant questions is also available, but may be less reliable in certain applications. Each item is a first-person statement which the test-taker must rate as either "strongly agree", "slightly agree", "slightly disagree", or "strongly disagree". All questions must be answered for the test results to be valid.

The test is scored on a scale of 0 (the least empathetic possible) to 80 (the most empathetic possible). A useful cut-off of 30 was established to screen for autism-spectrum disorders.

Development of the measure

Together with the systematizing quotient, the empathy quotient tests Simon Baron-Cohen's empathizing-systemizing (E-S) theory of autism. This cognitive theory attempts to account for two aspects of autism disorder: the social and communication barriers and the narrow interest and attention to detail. Baron-Cohen associated the social and communication barriers with a lack of empathy, not only a lack of theory of mind but also an inability to respond to others' thoughts and emotions. He associated the narrow interest and attention to detail with a special ability to systematize or analyze. This theory is consistent with the findings that individuals with autism score significantly higher on the systemizing quotient and lower on the empathizing quotient than the general population. Although these score differences have been found consistently, there is controversy about whether the autistic brain differs qualitatively or quantitatively.

E-S theory is also associated with a theory of autism called the extreme male brain theory. That theory is based on the finding that males score significantly higher on the systemizing quotient and lower on the empathy quotient than females in both adult and child populations, and that scores of the autistic population were also higher on systemizing and lower on empathizing but to an extreme. Baron-Cohen hypothesized that the tendencies of autistic scores to be similar to male scores might imply that the autistic brain is more like the male than the female brain in general, and that this might be due to prenatal testosterone. This hypothesis explains the sex difference in the prevalence of autism (male-female ratio: 4:1 for autism, 10.8:1 for Asperger syndrome).

The extreme male brain theory is controversial, and tests of the hypothesis had mixed findings on the correlation between biological indicators of prenatal testosterone and scores on the systemizing quotient and empathy quotient. Chapman et al. found that male children who had been exposed to more prenatal testosterone scored lower on the EQ, indicating that there is not only a sex difference in empathy but also a difference within the male population which is correlated with prenatal testosterone. There is also evidence against this theory. For example, one possible biomarker for prenatal testosterone's effect on the brain is a low ratio of the second to fourth finger (the 2D:4D ratio), which has been found to be associated with several male-specific psychological factors. A significantly lower 2D:4D ratio than the general population has been found in autistic individuals, however there was no correlation between the empathizing and systemizing quotients and the 2D:4D ratio. The authors give many possible explanations for this finding which are contrary to the extreme male brain theory of autism, for example it is possible that the psychometric properties of the quotients are lacking or that the theory itself is incorrect and the difference in autistic brains is not an extreme of normal functioning but of a different structure altogether.

Psychometric properties

There is evidence for the face validityof the EQ from the method by which the measure was created. In initial testing, the EQ was examined by a panel of six experimental psychologists, who were asked to rate the match of the items in the measure to the following definition of empathy: "Empathy is the drive or ability to attribute mental states to another person/animal, and entails an appropriate affective response in the observer to the other person’s mental state." This definition is based on Baron-Cohen's theory of empathy which includes both a cognitive and affective response to another individual's emotions. Each of the 40 empathy items were rated as relating to the definition of empathy, while all 20 control items were rated as not related, by at least five out of six experimenters.

The EQ has also demonstrated other kinds of reliability. Lawrence et al. found strong inter-rater reliability and test-retest reliability for the EQ. They also found that the EQ has a moderate correlation with the "empathetic concern" and "perspective taking" sub-scales of the Interpersonal Reactivity Index This is another measure of empathy that the authors of the EQ considered to be the best empathy measure before creating their own, but which includes sub-scales that measure more than empathy. This indicates that the EQ has concurrent validity.

There has been concern that social desirability might influence EQ score because certain items correlate with the social desirability scale. It is suggested that these items either be dropped or that social desirability be measured in conjunction with the EQ. The authors of this study also suggest that the EQ be revised to include only 28 items divided into three separate categories of empathy including "cognitive empathy, emotional reactivity, and social skills."

Doubts have been raised about the validity and reliability of the EQ. One study found a lack of correlation between the EQ and the 2D:4D ratio, as mentioned above. That study did not directly measure the psychometric properties of the empathy quotient, but indicated that there may be an issue either with the E-S theory or with the measure itself.

Revised questionnaires

Based on the findings about the psychometric properties of the EQ, there is evidence for the division of the EQ into three sub-categories (the three-factor model): cognitive empathy, emotional reactivity, and social skills. The original authors did not create those divisions because they considered it impossible to separate the cognitive from the emotional aspects of empathy.

Based on an analysis of the internal consistency of the scale, a team which included the original authors found that the original questionnaire contained some irrelevant questions. They produced a shortened version of the scale containing 28 items. Principal component analysis indicated that this shortened questionnaire was able to measure empathy reliably.

The EQ has been translated into several languages including Serbian, Russian, and Dutch. The reliability of the Serbian 40-question scale was lower than the English version, and the original theory that empathy is a one-factor concept was not confirmed. The translation of the shortened 28-question version had higher reliability and there was evidence for the three-factor understanding of empathy. The Russian study also confirmed the three-factor model. A study of the Dutch version also confirmed the three-factor model, and indicated good cross-cultural validity in Europe and the US, but less so in Asia.

Simulation theory of empathy

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

The simulation theory of empathy holds that humans anticipate and make sense of the behavior of others by activating mental processes that, if they culminated in action, would produce similar behavior. This includes intentional behavior as well as the expression of emotions. The theory says that children use their own emotions to predict what others will do; we project our own mental states onto others.

Simulation theory is not primarily a theory about empathy, but rather a theory of how people understand others—that they do so by way of a kind of empathetic response. This theory uses more biological evidence than other theories of mind, such as the theory-theory.

Origin

Simulation theory is based in philosophy of mind, a branch of philosophy that studies the nature of the mind and its relationship to the brain, especially the work of Alvin Goldman and Robert Gordon. The discovery of mirror neurons in macaque monkeys provides a physiological mechanism to explain the common coding between perception and action (see Wolfgang Prinz) and the hypothesis of a similar mirror neuron system in the human brain. Since the discovery of the mirror neuron system, many studies have been carried out to examine the role of this system in action understanding, emotion, and other social functions.

Development

Mirror neurons are activated both when actions are executed and when actions are observed. This function of mirror neurons may explain how people recognize and understand the states of others: they mirror the observed action in the brain as if they conducted the observed action.

Two sets of evidence suggest that mirror neurons in the monkey have a role in action understanding. First, the activation of mirror neurons requires biological effectors such as the hand or mouth. Mirror neurons do not respond to actions undertaken by tools like pliers. Mirror neurons respond to neither the sight of an object alone nor to an action without an object (intransitive action). Umilta and colleagues demonstrated that a subset of mirror neurons fired in the observer when a final critical part of the action was not visible to that observer. The experimenter showed his hand moving toward a cube and grasping it, and later showed the same action without showing the final grasping of the cube (the cube was behind an occluder). Mirror neurons fired in both scenarios. However mirror neurons did not fire when the observer knew that there was not a cube behind the occluder.

Second, responses of mirror neurons to the same action are different depending on context of the action. A single cell recording experiment with monkeys demonstrated the different level of activation of mouth mirror neurons when monkey observed mouth movement depending on context (ingestive actions such as sucking juice vs. communicative actions such as lip-smacking or tongue protrusions). An fMRI study also showed that mirror neurons respond to the action of grasping a cup differently depending on context (to drink a cup of coffee vs. to clean a table on which a cup was placed).

Since mirror neurons fire both for someone watching an action and someone completing an action, they may only predict actions, not beliefs or desires.

Emotion understanding

Shared neural representation for a motor behavior and its observation has been extended into the domains of feelings and emotions. Not only observations of movements but also those of facial expressions activate the same brain regions that are activated by direct experiences. In an fMRI study, the same brain regions activated when people imitated and observed emotional facial expressions such as happy, sad, angry, surprise, disgust, and afraid.

Observing video clips that displayed facial expressions indicating disgust activated the neural networks typical of direct experience of disgust. Similar results have been found in the case of touch. Watching movies in which someone touched legs or faces activated the somatosensory cortex for direct feeling of the touch. A similar mirror system exists in perceiving pain. When people see other people feel pain, people feel pain not only affectively, but also sensorially.

These results suggest that understanding another's feelings and emotions is driven not by cognitive deduction of what the stimuli means but by automatic activation of somatosensory neurons. A recent study on pupil size directly demonstrated emotion perception as an automatic process modulated by mirror systems. When people saw sad faces, pupil sizes influenced viewers in perceiving and judging emotional states without explicit awareness of differences of pupil size. When pupil size was 180% of original size, people perceived a sad face as less negative and less intense than when pupil was smaller than or equal to original pupil size. This mechanism was correlated with brain regions implicated in emotion processing, such as the amygdala. Viewers mirror the size of their own pupils to those of sad faces they watch. Considering that pupil size is beyond voluntary control, the change of pupil size upon emotion judgment is a good indication that understanding emotions is automatic process. However, the study could not find that other emotional faces, such as faces displaying happiness and anger, influence pupil size as sadness did.

Epistemological role of empathy

Based on findings from neuroimaging studies, de Vignemont and Singer proposed empathy as a crucial factor in human communication: "Empathy might enable us to make faster and more accurate predictions of other people's needs and actions and discover salient aspects of our environment." Mental mirroring of actions and emotions may enable humans to understand other's actions and their related environment quickly, and thus help humans communicate efficiently.

In an fMRI study, a mirror system has been proposed as common neural substrate that mediates the experience of basic emotions. Participants watched video clips of happy, sad, angry, and disgusted facial expressions, and researchers measured their empathy quotient (EQ). Specific brain regions relevant to the four emotions were found to be correlated with the EQ while the mirror system (i.e., the left dorsal inferior frontal gyrus/premotor cortex) was correlated to the EQ across all emotions. The authors interpreted this result as an evidence that action perception mediates face perception to emotion perception.

Empathy for pain

A paper published in Science challenges the idea that pain sensations and mirror neurons play a role in empathy for pain. Specifically, the authors found that activity in the anterior insula and the anterior cingulate cortex (two regions known to be responsible for the affective experience of pain) was present both when one's self and when another person were presented with a painful stimulus, but the rest of the pain matrix responsible for sensation was not active. Furthermore, participants merely saw the hand of another person with the electrode on it, making it unlikely that "mirroring" could have caused the empathic response. However, a number of other studies, using magnetoencephalography and functional MRI have since demonstrated that empathy for pain does involve the somatosensory cortex, which supports the simulation theory.

Support for the anterior insula and anterior cingulate cortex being the neural substrates of empathy include Wicker et al., 2003 who report that their "core finding is that the anterior insula is activated both during observation of disgusted facial expressions and during the emotion of disgust evoked by unpleasant odorants."

Furthermore, one study demonstrated that "for actions, emotions, and sensations both animate and inanimate touch activates our inner representation of touch." They note, however that "it is important at this point to clarify the fact that we do not believe that the activation we observe evolved in order to empathize with other objects or human beings."

Empathy activating altruism

This model states that empathy activates only one interpersonal motivation: altruism. Theoretically, this model makes sense, because empathy is an other-focused emotion. There is an impressive history of research suggesting that empathy, when activated, causes people to act in ways to benefit the other, such as receiving electric shocks for the other. These findings have often been interpreted in terms of empathy causing increased altruistic motivation, which in turn causes helping behavior.

Ethical socialism

From Wikipedia, the free encyclopedia

Ethical socialism is a political philosophy that appeals to socialism on ethical and moral grounds as opposed to consumeristic, economic, and egoistic grounds. It emphasizes the need for a morally conscious economy based upon the principles of altruism, cooperation, and social justice while opposing possessive individualism.

In contrast to socialism inspired by historical materialism, Marxist theory, neoclassical economics, and rationalism which base their appeals for socialism on grounds of economic efficiency, historical inevitability, or rationality, ethical socialism focuses on the moral and ethical reasons for advocating socialism. It became the official philosophy of several socialist parties.

Ethical socialism has some significant overlap with Christian socialism, Fabianism, guild socialism, liberal socialism, social-democratic reformism, and utopian socialism. Under the influence of politicians like Carlo Rosselli in Italy, social democrats began disassociating themselves from orthodox Marxism altogether as represented by Marxism–Leninism, embracing an ethical liberal socialism, Keynesianism, and appealing to morality rather than any consistent systematic, scientific or materialist worldview.

Social democracy made appeals to communitarian, corporatist, and sometimes nationalist sentiments while rejecting the economic and technological determinism generally characteristic of both economic liberalism and orthodox Marxism.

Overview

Ethical socialism can be traced back to the utopian socialists, especially Henri de Saint-Simon and Charles Fourier, but also anarchists such as the French socialist Pierre-Joseph Proudhon as well as Italian revolutionaries and socialists such as Giuseppe Garibaldi and Giuseppe Mazzini. Those utopian socialists, one of the first currents of modern socialist thought, presented visions and outlines for imaginary or futuristic ideal societies, characterized by the establishment of a moral economy, with positive ideals based on moral and ethical grounds being the main reason for moving society in such a direction. Before Marxists established a hegemony over definitions of socialism, the term socialism was a broad concept which referred to one or more of various theories aimed at solving the labour problem through radical changes in the capitalist economy. Descriptions of the problem, explanations of its causes and proposed solutions such as the abolition of private property or supporting cooperatives and public ownership varied among socialist philosophies.

The term ethical socialism initially originated as a pejorative by the Marxian economist Rosa Luxemburg against Marxist revisionist Eduard Bernstein and his socialist reformist supporters, who evoked neo-Kantian liberal ideals and ethical arguments in favour of socialism. Self-recognized ethical socialists soon arose in Britain such as the Christian socialist R. H. Tawney and its ideals were connected to Christian socialist, Fabian, and guild socialist ideals. Ethical socialism was an important ideology within the British Labour Party. Ethical socialism has been publicly supported by British prime ministers Ramsay MacDonald, Clement Attlee, and Tony Blair. While Blair described New Labour as a return to ethical socialism, several critics accused him of completely abandoning socialism in favour of capitalism.

Ethical socialism had a profound impact on the social democratic movement and reformism during the later half of the 20th century, particularly in Great Britain. Ethical socialism is distinct in its focus on criticism of the ethics of capitalism and not merely criticism of the economic, systemic, and material issues of capitalism. When the Social Democratic Party of Germany (SPD) renounced orthodox Marxism during the Godesberg Program in the 1950s, ethical socialism became the official philosophy within the SPD. The decision to abandon the traditional anti-capitalist policy angered many in the SPD who had supported it. Some such as Ian Adams also argue that this was an abandonment of the classical conception of socialism as involving the replacement of the capitalist economic system and make a distinction between classical socialism and liberal socialism.

Themes

R. H. Tawney, founder of ethical socialism

R. H. Tawney denounced self-seeking amoral and immoral behaviour that he claimed is supported by capitalism. Tawney opposed what he called the "acquisitive society" that causes private property to be used to transfer surplus profit to "functionless owners", i.e. capitalist rentiers. However, he did not denounce managers as a whole, believing that management and employees could join in a political alliance for reform. Tawney supported the pooling of surplus profit through means of progressive taxation to redistribute these funds to provide social welfare (including public health care, public education, and public housing) and the nationalization of strategic industries and services. He supported worker participation in the business of management in the economy as well as consumer, employee, employer and state cooperation in regulating the economy.

Although Tawney supported a substantial role for public enterprise in the economy, he stated that where private enterprise provided a service that was commensurate with its rewards that was functioning private property, then a business could be usefully and legitimately be left in private hands. Thomas Hill Green supported the right of equal opportunity for all individuals to be able freely appropriate property, but claimed that acquisition of wealth did not imply that an individual could do whatever they wanted to once that wealth was in their possession. Green opposed "property rights of the few" that were preventing the ownership of property by the many.

Ethical socialism was advocated and promoted by former British prime minister Tony Blair, who has been influenced by John Macmurray, himself influenced by Green. Blair has defined ethical socialism with similar notions promoted by earlier ethical socialists such as emphasis on the common good, rights, and responsibilities, and support of an organic society in which individuals flourish through cooperation. According to Blair, the Labour Party ran into problems in the 1960s and 1970s when it abandoned ethical socialism and believes that the party's recovery required a return to the ethical socialist values last promoted by the Attlee government. However, Blair's critics (both inside and outside Labour) have accused him of completely abandoning socialism in favour of capitalism.

Observational astronomy

From Wikipedia, the free encyclopedia
 
An assembly in Estonia to observe meteors

Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which is mainly concerned with calculating the measurable implications of physical models. It is the practice and study of observing celestial objects with the use of telescopes and other astronomical instruments.

As a science, the study of astronomy is somewhat hindered in that direct experiments with the properties of the distant universe are not possible. However, this is partly compensated by the fact that astronomers have a vast number of visible examples of stellar phenomena that can be examined. This allows for observational data to be plotted on graphs, and general trends recorded. Nearby examples of specific phenomena, such as variable stars, can then be used to infer the behavior of more distant representatives. Those distant yardsticks can then be employed to measure other phenomena in that neighborhood, including the distance to a galaxy.

Galileo Galilei turned a telescope to the heavens and recorded what he saw. Since that time, observational astronomy has made steady advances with each improvement in telescope technology.

Subdivisions

The Crab Nebula as seen in various wavelengths

A traditional division of observational astronomy is based on the region of the electromagnetic spectrum observed:

Methods

In addition to using electromagnetic radiation, modern astrophysicists can also make observations using neutrinos, cosmic rays or gravitational waves. Observing a source using multiple methods is known as multi-messenger astronomy.

Ultra HD photography taken at La Silla Observatory.

Optical and radio astronomy can be performed with ground-based observatories, because the atmosphere is relatively transparent at the wavelengths being detected. Observatories are usually located at high altitudes so as to minimise the absorption and distortion caused by the Earth's atmosphere. Some wavelengths of infrared light are heavily absorbed by water vapor, so many infrared observatories are located in dry places at high altitude, or in space.

The atmosphere is opaque at the wavelengths used by X-ray astronomy, gamma-ray astronomy, UV astronomy and (except for a few wavelength "windows") far infrared astronomy, so observations must be carried out mostly from balloons or space observatories. Powerful gamma rays can, however be detected by the large air showers they produce, and the study of cosmic rays is a rapidly expanding branch of astronomy.

Important factors

For much of the history of observational astronomy, almost all observation was performed in the visual spectrum with optical telescopes. While the Earth's atmosphere is relatively transparent in this portion of the electromagnetic spectrum, most telescope work is still dependent on seeing conditions and air transparency, and is generally restricted to the night time. The seeing conditions depend on the turbulence and thermal variations in the air. Locations that are frequently cloudy or suffer from atmospheric turbulence limit the resolution of observations. Likewise the presence of the full Moon can brighten up the sky with scattered light, hindering observation of faint objects.

For observation purposes, the optimal location for an optical telescope is undoubtedly in outer space. There the telescope can make observations without being affected by the atmosphere. However, at present it remains costly to lift telescopes into orbit. Thus the next best locations are certain mountain peaks that have a high number of cloudless days and generally possess good atmospheric conditions (with good seeing conditions). The peaks of the islands of Mauna Kea, Hawaii and La Palma possess these properties, as to a lesser extent do inland sites such as Llano de Chajnantor, Paranal, Cerro Tololo and La Silla in Chile. These observatory locations have attracted an assemblage of powerful telescopes, totalling many billion US dollars of investment.

The darkness of the night sky is an important factor in optical astronomy. With the size of cities and human populated areas ever expanding, the amount of artificial light at night has also increased. These artificial lights produce a diffuse background illumination that makes observation of faint astronomical features very difficult without special filters. In a few locations such as the state of Arizona and in the United Kingdom, this has led to campaigns for the reduction of light pollution. The use of hoods around street lights not only improves the amount of light directed toward the ground, but also helps reduce the light directed toward the sky.

Atmospheric effects (astronomical seeing) can severely hinder the resolution of a telescope. Without some means of correcting for the blurring effect of the shifting atmosphere, telescopes larger than about 15–20 cm in aperture can not achieve their theoretical resolution at visible wavelengths. As a result, the primary benefit of using very large telescopes has been the improved light-gathering capability, allowing very faint magnitudes to be observed. However the resolution handicap has begun to be overcome by adaptive optics, speckle imaging and interferometric imaging, as well as the use of space telescopes.

Measuring results

Astronomers have a number of observational tools that they can use to make measurements of the heavens. For objects that are relatively close to the Sun and Earth, direct and very precise position measurements can be made against a more distant (and thereby nearly stationary) background. Early observations of this nature were used to develop very precise orbital models of the various planets, and to determine their respective masses and gravitational perturbations. Such measurements led to the discovery of the planets Uranus, Neptune, and (indirectly) Pluto. They also resulted in an erroneous assumption of a fictional planet Vulcan within the orbit of Mercury (but the explanation of the precession of Mercury's orbit by Einstein is considered one of the triumphs of his general relativity theory).

Developments and diversity

ALMA is the world's most powerful telescope for studying the Universe at submillimeter and millimeter wavelengths.

In addition to examination of the universe in the optical spectrum, astronomers have increasingly been able to acquire information in other portions of the electromagnetic spectrum. The earliest such non-optical measurements were made of the thermal properties of the Sun. Instruments employed during a solar eclipse could be used to measure the radiation from the corona.

Radio astronomy

With the discovery of radio waves, radio astronomy began to emerge as a new discipline in astronomy. The long wavelengths of radio waves required much larger collecting dishes in order to make images with good resolution, and later led to the development of the multi-dish interferometer for making high-resolution aperture synthesis radio images (or "radio maps"). The development of the microwave horn receiver led to the discovery of the microwave background radiation associated with the Big Bang.

Radio astronomy has continued to expand its capabilities, even using radio astronomy satellites to produce interferometers with baselines much larger than the size of the Earth. However, the ever-expanding use of the radio spectrum for other uses is gradually drowning out the faint radio signals from the stars. For this reason, in the future radio astronomy might be performed from shielded locations, such as the far side of the Moon.

Late 20th-century developments

The last part of the twentieth century saw rapid technological advances in astronomical instrumentation. Optical telescopes were growing ever larger, and employing adaptive optics to partly negate atmospheric blurring. New telescopes were launched into space, and began observing the universe in the infrared, ultraviolet, x-ray, and gamma ray parts of the electromagnetic spectrum, as well as observing cosmic rays. Interferometer arrays produced the first extremely high-resolution images using aperture synthesis at radio, infrared and optical wavelengths. Orbiting instruments such as the Hubble Space Telescope produced rapid advances in astronomical knowledge, acting as the workhorse for visible-light observations of faint objects. New space instruments under development are expected to directly observe planets around other stars, perhaps even some Earth-like worlds.

In addition to telescopes, astronomers have begun using other instruments to make observations.

Other instruments

Neutrino astronomy is the branch of astronomy that observes astronomical objects with neutrino detectors in special observatories, usually huge underground tanks. Nuclear reactions in stars and supernova explosions produce very large numbers of neutrinos, very few of which may be detected by a neutrino telescope. Neutrino astronomy is motivated by the possibility of observing processes that are inaccessible to optical telescopes, such as the Sun's core.

Gravitational wave detectors are being designed that may capture events such as collisions of massive objects such as neutron stars or black holes.

Robotic spacecraft are also being increasingly used to make highly detailed observations of planets within the Solar System, so that the field of planetary science now has significant cross-over with the disciplines of geology and meteorology.

Observation tools

One of the Oldest Observatories in South America is the Quito Astronomical Observatory, founded in 1873 and located 12 minutes south of the Equator in Quito, Ecuador. The Quito Astronomical Observatory is the National Observatory of Ecuador and is located in the Historic Center of Quito and is managed by the National Polytechnic School.

Telescopes

An amateur astrophotography setup with an automated guide system connected to a laptop.

The key instrument of nearly all modern observational astronomy is the telescope. This serves the dual purposes of gathering more light so that very faint objects can be observed, and magnifying the image so that small and distant objects can be observed. Optical astronomy requires telescopes that use optical components of great precision. Typical requirements for grinding and polishing a curved mirror, for example, require the surface to be within a fraction of a wavelength of light of a particular conic shape. Many modern "telescopes" actually consist of arrays of telescopes working together to provide higher resolution through aperture synthesis.

Large telescopes are housed in domes, both to protect them from the weather and to stabilize the environmental conditions. For example, if the temperature is different from one side of the telescope to the other, the shape of the structure changes, due to thermal expansion pushing optical elements out of position. This can affect the image. For this reason, the domes are usually bright white (titanium dioxide) or unpainted metal. Domes are often opened around sunset, long before observing can begin, so that air can circulate and bring the entire telescope to the same temperature as the surroundings. To prevent wind-buffet or other vibrations affecting observations, it is standard practice to mount the telescope on a concrete pier whose foundations are entirely separate from those of the surrounding dome and building.

To do almost any scientific work requires that telescopes track objects as they wheel across the visible sky. In other words, they must smoothly compensate for the rotation of the Earth. Until the advent of computer controlled drive mechanisms, the standard solution was some form of equatorial mount, and for small telescopes this is still the norm. However, this is a structurally poor design and becomes more and more cumbersome as the diameter and weight of the telescope increases. The world's largest equatorial mounted telescope is the 200 inch (5.1 m) Hale Telescope, whereas recent 8–10 m telescopes use the structurally better altazimuth mount, and are actually physically smaller than the Hale, despite the larger mirrors. As of 2006, there are design projects underway for gigantic alt-az telescopes: the Thirty Metre Telescope , and the 100 m diameter Overwhelmingly Large Telescope.

Amateur astronomers use such instruments as the Newtonian reflector, the Refractor and the increasingly popular Maksutov telescope.

Photography

The photograph has served a critical role in observational astronomy for over a century, but in the last 30 years it has been largely replaced for imaging applications by digital sensors such as CCDs and CMOS chips. Specialist areas of astronomy such as photometry and interferometry have utilised electronic detectors for a much longer period of time. Astrophotography uses specialised photographic film (or usually a glass plate coated with photographic emulsion), but there are a number of drawbacks, particularly a low quantum efficiency, of the order of 3%, whereas CCDs can be tuned for a QE >90% in a narrow band. Almost all modern telescope instruments are electronic arrays, and older telescopes have been either been retrofitted with these instruments or closed down. Glass plates are still used in some applications, such as surveying, because the resolution possible with a chemical film is much higher than any electronic detector yet constructed.

Advantages

Prior to the invention of photography, all astronomy was done with the naked eye. However, even before films became sensitive enough, scientific astronomy moved entirely to film, because of the overwhelming advantages:

  • The human eye discards what it sees from split-second to split-second, but photographic film gathers more and more light for as long as the shutter is open.
  • The resulting image is permanent, so many astronomers can use the same data.
  • It is possible to see objects as they change over time (SN 1987A is a spectacular example).

Blink comparator

The blink comparator is an instrument that is used to compare two nearly identical photographs made of the same section of sky at different points in time. The comparator alternates illumination of the two plates, and any changes are revealed by blinking points or streaks. This instrument has been used to find asteroids, comets, and variable stars.

50 cm refracting telescope at Nice Observatory.

Micrometer

The position or cross-wire micrometer is an implement that has been used to measure double stars. This consists of a pair of fine, movable lines that can be moved together or apart. The telescope lens is lined up on the pair and oriented using position wires that lie at right angles to the star separation. The movable wires are then adjusted to match the two star positions. The separation of the stars is then read off the instrument, and their true separation determined based on the magnification of the instrument.

Spectrograph

A vital instrument of observational astronomy is the spectrograph. The absorption of specific wavelengths of light by elements allows specific properties of distant bodies to be observed. This capability has resulted in the discovery of the element of helium in the Sun's emission spectrum, and has allowed astronomers to determine a great deal of information concerning distant stars, galaxies, and other celestial bodies. Doppler shift (particularly "redshift") of spectra can also be used to determine the radial motion or distance with respect to the Earth.

Early spectrographs employed banks of prisms that split light into a broad spectrum. Later the grating spectrograph was developed, which reduced the amount of light loss compared to prisms and provided higher spectral resolution. The spectrum can be photographed in a long exposure, allowing the spectrum of faint objects (such as distant galaxies) to be measured.

Stellar photometry came into use in 1861 as a means of measuring stellar colors. This technique measured the magnitude of a star at specific frequency ranges, allowing a determination of the overall color, and therefore temperature of a star. By 1951 an internationally standardized system of UBV-magnitudes (Ultraviolet-Blue-Visual) was adopted.

Photoelectric photometry

Photoelectric photometry using the CCD is now frequently used to make observations through a telescope. These sensitive instruments can record the image nearly down to the level of individual photons, and can be designed to view in parts of the spectrum that are invisible to the eye. The ability to record the arrival of small numbers of photons over a period of time can allow a degree of computer correction for atmospheric effects, sharpening up the image. Multiple digital images can also be combined to further enhance the image, often known as "stacking". When combined with the adaptive optics technology, image quality can approach the theoretical resolution capability of the telescope.

Filters are used to view an object at particular frequencies or frequency ranges. Multilayer film filters can provide very precise control of the frequencies transmitted and blocked, so that, for example, objects can be viewed at a particular frequency emitted only by excited hydrogen atoms. Filters can also be used to partially compensate for the effects of light pollution by blocking out unwanted light. Polarization filters can also be used to determine if a source is emitting polarized light, and the orientation of the polarization.

Observing

The main platform at La Silla hosts a huge range of telescopes with which astronomers can explore the Universe.

Astronomers observe a wide range of astronomical sources, including high-redshift galaxies, AGNs, the afterglow from the Big Bang and many different types of stars and protostars.

A variety of data can be observed for each object. The position coordinates locate the object on the sky using the techniques of spherical astronomy, and the magnitude determines its brightness as seen from the Earth. The relative brightness in different parts of the spectrum yields information about the temperature and physics of the object. Photographs of the spectra allow the chemistry of the object to be examined.

Parallax shifts of a star against the background can be used to determine the distance, out to a limit imposed by the resolution of the instrument. The radial velocity of the star and changes in its position over time (proper motion) can be used to measure its velocity relative to the Sun. Variations in the brightness of the star give evidence of instabilities in the star's atmosphere, or else the presence of an occulting companion. The orbits of binary stars can be used to measure the relative masses of each companion, or the total mass of the system. Spectroscopic binaries can be found by observing doppler shifts in the spectrum of the star and its close companion.

Stars of identical masses that formed at the same time and under similar conditions typically have nearly identical observed properties. Observing a mass of closely associated stars, such as in a globular cluster, allows data to be assembled about the distribution of stellar types. These tables can then be used to infer the age of the association.

For distant galaxies and AGNs observations are made of the overall shape and properties of the galaxy, as well as the groupings where they are found. Observations of certain types of variable stars and supernovae of known luminosity, called standard candles, in other galaxies allows the inference of the distance to the host galaxy. The expansion of space causes the spectra of these galaxies to be shifted, depending on the distance, and modified by the Doppler effect of the galaxy's radial velocity. Both the size of the galaxy and its redshift can be used to infer something about the distance of the galaxy. Observations of large numbers of galaxies are referred to as redshift surveys, and are used to model the evolution of galaxy forms.

Inequality (mathematics)

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