Evolutionary psychology: Difference between revisions
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Biologists working in the field of '''evolutionary psychology''' argue that not only did the human body and its physiological characteristics evolve by means of [[Natural selection|natural selection]], but also the human [[Mind|mind]] so evolved, including evolution of its manifold psychological, emotional and cognitive characteristics. They argue that human mental traits, including predispositions and biases, having evolved under pressure of natural selection during human evolution, reflect adaptations to the particular environments that prevailed before and during the period the human species (''Homo sapiens'') emerged from its ancestral lineage 200,000 years ago and evolved to a fully modern human species by some 50,000 years ago. They refer to the seminal period of psychological/cognitive adaptation to environmental circumstances as the | Biologists working in the field of '''evolutionary psychology''' argue that not only did the human body and its physiological characteristics evolve by means of [[Natural selection|natural selection]], but also the human [[Mind|mind]] so evolved, including evolution of its manifold psychological, emotional and cognitive characteristics. They argue that human mental traits, including predispositions and biases, having evolved under pressure of natural selection during human evolution, reflect adaptations to the particular environments that prevailed before and during the period the human species (''Homo sapiens'') emerged from its ancestral lineage 200,000 years ago and evolved to a fully modern human species by some 50,000 years ago. They refer to the seminal period of psychological/cognitive adaptation to environmental circumstances as the <u>e</u>ra of <u>e</u>volutionary <u>a</u>daptedness, shorthanded to ''EEA'', a period possibly extending to the Stone Age beginning about 2.5 million years ago. | ||
By reconstructing, from paleobiological data and interpretations, the nature of the EEA — its selective biotic, social and abiotic environmental factors — evolutionary psychologists hope to gain insight into why humans today, to quote University of Cambridge evolutionary biologist and | By reconstructing, from paleobiological data and interpretations, the nature of the ''EEA'' — its selective biotic, social and abiotic environmental factors — evolutionary psychologists hope to gain insight into why humans today, to quote University of Cambridge evolutionary biologist and anthropologist Robert Foley: | ||
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*< | <font face="Gill Sans MT">...have propensities for certain types of thought, motivations, and behaviors ... [which] by inference, allow psychologists to consider whether contemporary humans are living under circumstances that are less than optimal and, indeed, may now be maladaptive.</font> <ref name=foley1995>Foley R. (1995) [http://dx.doi.org/10.1002/evan.1360040603 The Adaptive legacy of Human Evolution: A Search for the Environment of Evolutionary Adaptedness.] ''Evolutionary Anthropology'' 44:194-203. | ||
*<font face="Gill Sans MT">Abstract: The growth of evolutionary psychology has led to renewed interest in what might be the significant evolutionary heritage of people living today, and in the extent to which humans are suited to a particular adaptive environment - the EEA. The EEA, though, is a new tool in the battery of evolutionary concepts, and it is important both that it is scrutinized for its utility, and that the actual reconstructions of the environments in which humans and hominids evolved are based on sound palaeobiological inference and an appropriate use of the phylogenetic context of primate evolution.</ref> | |||
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Based on the Darwinian-Wallacean evolutionary principle of natural selection, and the concept of the EEA, evolutionary psychologists generate hypotheses and inferences in an attempt to | Based on the Darwinian-Wallacean evolutionary principle of natural selection, and the concept of the ''EEA'', evolutionary psychologists generate hypotheses and inferences in an attempt to explain [[Mind|mental]] [[Trait theory|trait]]s — psychological traits such as aggressiveness; cognitive traits such as [[memory]], [[perception]], or [[speech]]. They aim to bring an [[adaptationist]] approach to [[Psychological adaptation|psychological mechanisms]] similar in a way adaptionist explanations abound for physiological mechanisms. Evolutionary psychologists consider central the concept that [[evolution]] by means of natural selection has shaped [[mind]] and [[behavior]]. Though applicable to any [[organism]] with a [[nervous system]], evolutionary psychology focuses mostly on humans. | ||
Closely related fields: [[human behavioral ecology]], [[dual inheritance theory]], and [[sociobiology]]. | Closely related fields are: [[human behavioral ecology]], [[dual inheritance theory]], and [[sociobiology]]. | ||
==Overview== | ==Overview== | ||
Evolutionary psychology | Evolutionary psychology offers a new biological perspective on psychology, the biology of Darwin-Wallacism applied to the living brain-body system. At its broadest it views what some refer as 'human nature' as a complex of evolved psychological adaptations to recurring problems humans faced in the ancestral environment. Evolutionary psychology eliminates the historical division between the "soft" human [[social science]]s and the "hard" [[natural science]]s, having the same theoretical foundation as biology: Darwinian [[evolutionary theory]]. "''In the future, the study of human psychology will be completely transformed by the Darwinian approach…it won’t be called ‘Evolutionary Psychology’. It will just be called ‘psychology'.''"<ref>Evans and Zarate 2005, 169</ref> | ||
Just as human [[physiology]] and [[evolutionary physiology]] has worked to identify physical adaptations of the body that represent "human physiological nature," the purpose of evolutionary psychology is to identify evolved emotional and cognitive adaptations that represent "human psychological nature." EP is, to quote [[Steven Pinker]], "not a single theory but a large set of hypotheses" and a term which "has also come to refer to a particular way of applying evolutionary theory to the mind, with an emphasis on adaptation, gene-level selection, and [[modularity of mind|modularity]]." EP proposes that the human [[brain]] comprises many functional mechanisms,<ref>[http://psychegames.com/evolutionary-psychology.htm evolutionary psychology] Psyche Games. Accessed | Just as human [[physiology]] and [[evolutionary physiology]] has worked to identify physical adaptations of the body that represent "human physiological nature," the purpose of evolutionary psychology is to identify evolved emotional and cognitive adaptations that represent "human psychological nature." EP is, to quote [[Steven Pinker]], "not a single theory but a large set of hypotheses" and a term which "has also come to refer to a particular way of applying evolutionary theory to the mind, with an emphasis on adaptation, gene-level selection, and [[modularity of mind|modularity]]." EP proposes that the human [[brain]] comprises many functional mechanisms,<ref>[http://psychegames.com/evolutionary-psychology.htm evolutionary psychology] Psyche Games. Accessed August 22, 2007</ref> called ''[[psychological adaptation]]s'' or evolved cognitive mechanisms or ''[[cognitive modules]]'' designed by the process of natural selection. Examples include [[language acquisition|language acquisition modules]], [[Westermarck effect|incest avoidance mechanisms]], [[Wason selection task|cheater detection mechanisms]], intelligence and [[sex]]-specific mating preferences, foraging mechanisms, alliance-tracking mechanisms, agent detection mechanisms, and so on. | ||
EP has roots in [[cognitive psychology]] and [[evolutionary biology]] (''See also'' [[sociobiology]]). It also draws on [[behavioral ecology]], [[artificial intelligence]], [[genetics]], [[ethology]], [[anthropology]], [[archaeology]], [[biology]], and [[zoology]]. EP is closely linked to [[sociobiology]],<ref>Seltin, Melissa. (August 1988) [http://www.personalityresearch.org/papers/seltin.html The Evolution of Evolutionary Psychology: From Sociobiology to Evolutionary Psychology] Accessed | EP has roots in [[cognitive psychology]] and [[evolutionary biology]] (''See also'' [[sociobiology]]). It also draws on [[behavioral ecology]], [[artificial intelligence]], [[genetics]], [[ethology]], [[anthropology]], [[archaeology]], [[biology]], and [[zoology]]. EP is closely linked to [[sociobiology]],<ref>Seltin, Melissa. (August 1988) [http://www.personalityresearch.org/papers/seltin.html The Evolution of Evolutionary Psychology: From Sociobiology to Evolutionary Psychology] Accessed August 22, 2007</ref> but there are key differences between them including the emphasis on ''domain-specific'' rather than ''domain-general'' mechanisms, the relevance of measures of current [[fitness (biology)|fitness]], the importance of [[mismatch theory]], and psychology rather than behaviour. Many evolutionary psychologists, however, argue that the mind consists of both domain-specific and domain-general mechanisms, especially [[evolutionary developmental psychology|evolutionary developmental psychologists]]. Most sociobiological research is now conducted in the field of [[behavioral ecology]].<ref>[http://www.springer.com/west/home?SGWID=4-102-70-1040727-0&changeHeader=true&referer=springer.com&SHORTCUT=www.springer.com/journal/265 00265 Behavioral Ecology and Sociobiology] Accessed August 22, 2007</ref> | ||
The term ''evolutionary psychology'' was probably coined by [[Michael Ghiselin]] in his 1973 article in ''Science''. [[Jerome H. Barkow|Jerome Barkow]], [[Leda Cosmides]] and [[John Tooby]] popularized the term "evolutionary psychology" in their highly influential | The term ''evolutionary psychology'' was probably coined by [[Michael Ghiselin]] in his 1973 article in ''Science''. [[Jerome H. Barkow|Jerome Barkow]], [[Leda Cosmides]] and [[John Tooby]] popularized the term "evolutionary psychology" in their highly influential 1992 book ''[[The Adapted Mind|The Adapted Mind: Evolutionary Psychology and The Generation of Culture]]''. EP has been applied to the study of many fields, including [[economics]], [[aggression]], [[law]], [[psychiatry]], [[politics]], [[literature]], and [[reproduction|sex]]. | ||
EP uses [[Nikolaas Tinbergen]]'s [[Tinbergen's four questions|four categories of questions]] and explanations of animal behavior. Two categories are at the species level; two, at the individual level, as noted in the table below. | EP uses [[Nikolaas Tinbergen]]'s [[Tinbergen's four questions|four categories of questions]] and explanations of animal behavior. Two categories are at the species level; two, at the individual level, as noted in the table below. | ||
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The species-level categories (often called “ultimate explanations”) are | The species-level categories (often called “ultimate explanations”) are | ||
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The individual-level categories are | The individual-level categories are | ||
*the development of the individual (i.e., [[ontogeny]]) and | *the development of the individual (i.e., [[ontogeny]]) and | ||
*the proximate mechanism (e.g., | *the proximate mechanism (e.g., neuroanatomy and hormones). | ||
Evolutionary psychology mostly focuses on the adaptation (functional) category. | Evolutionary psychology mostly focuses on the adaptation (functional) category. | ||
===Principles of evolutionary psychology=== | ===Principles of evolutionary psychology=== | ||
Evolutionary psychology is a hybrid discipline that draws insights from modern evolutionary theory, biology, cognitive psychology, anthropology, economics, computer science, and paleoarchaeology. The discipline rests on a foundation of core premises. According to [http://www.davidbuss.com David Buss], a prominent researcher in the field, these include: | Evolutionary psychology is a hybrid discipline that draws insights from modern evolutionary theory, biology, cognitive psychology, anthropology, economics, computer science, and paleoarchaeology. The discipline rests on a foundation of core premises. According to [http://www.davidbuss.com David Buss], a prominent researcher in the field, these include: | ||
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# Consciousness is just the tip of the iceberg; most of what goes on in your mind is hidden from you. As a result, your conscious experience can mislead you into thinking that our circuitry is simpler than it really is. Most problems that you experience as easy to solve are very difficult to solve -- they require very complicated neural circuitry | # Consciousness is just the tip of the iceberg; most of what goes on in your mind is hidden from you. As a result, your conscious experience can mislead you into thinking that our circuitry is simpler than it really is. Most problems that you experience as easy to solve are very difficult to solve -- they require very complicated neural circuitry | ||
# Different neural circuits are specialized for solving different adaptive problems. | # Different neural circuits are specialized for solving different adaptive problems. | ||
# Our modern skulls house a stone age mind.<ref name="Cosmides">Cosmides, Leda and John Tooby. | # Our modern skulls house a stone age mind.<ref name="Cosmides">Cosmides, Leda and John Tooby. January 13, 1997 [http://www.psych.ucsb.edu/research/cep/primer.html Evolutionary Psychology: A Primer] Accessed [[August 22]]2007</ref> | ||
== General evolutionary theory == | == General evolutionary theory == | ||
: ''Main article: [[Evolution]] | : ''Main article: [[Evolution]] | ||
The roots of evolutionary psychology lie in the theory of evolution. Some evolutionary psychologists view their discipline not just as a sub-discipline of psychology but as a way in which they can apply evolutionary theory as a meta-theoretical framework within which to examine ''the entire field of psychology''.<ref name="Cosmides"/> Many evolutionary biologists,however, challenge the basic premises of evolutionary psychology.<ref>Gould SJ. (2002) [http://goo.gl/0NHnf ''The Structure of Evolutionary Theory'']. Harvard University Press. ISBN 9780674006133. | |||
</ref> | |||
Natural selection, a key component of evolutionary theory, involves three main ingredients: | Natural selection, a key component of evolutionary theory, involves three main ingredients: | ||
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====Inclusive fitness==== | ====Inclusive fitness==== | ||
[[Inclusive fitness]] theory, which was proposed by [[W.D. Hamilton|William D. Hamilton]] in 1964 as a revision to evolutionary theory, is basically a combination of natural selection, sexual selection, and kin selection. It refers to the sum of an individual's own reproductive success plus the effects the individual's actions have on the reproductive success of their genetic relatives. General evolutionary theory, in its modern form, '''is''' essentially inclusive fitness theory. | [[Inclusive fitness]] theory, which was proposed by [[W.D. Hamilton|William D. Hamilton]] in 1964 as a revision to evolutionary theory, is basically a combination of natural selection, sexual selection, and kin selection. It refers to the sum of an individual's own reproductive success plus the effects the individual's actions have on the reproductive success of their genetic relatives. General evolutionary theory, in its modern form, '''is''' essentially inclusive fitness theory. | ||
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====Overview of some foundational ideas related to evolutionary psychology==== | ====Overview of some foundational ideas related to evolutionary psychology==== | ||
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'''System Level:'''<br>Non-kin small group | '''System Level:'''<br>Non-kin small group | ||
'''Problem:'''<br>How | '''Problem:'''<br>How are resources best allocated in mating and/or parenting contexts to maximize inclusive fitness?<br> | ||
| Robert Trivers (1972)<br> | | Robert Trivers (1972)<br> | ||
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==Middle-level evolutionary theories== | ==Middle-level evolutionary theories== | ||
Middle-level evolutionary theories are theories that encompass broad domains of functioning. They are compatible with general evolutionary theory but not derived from it. Furthermore, they are applicable across species. During the early 1970s, three very important middle-level evolutionary theories were contributed by [[Robert Trivers]]:<ref> | Middle-level evolutionary theories are theories that encompass broad domains of functioning. They are compatible with general evolutionary theory but not derived from it. Furthermore, they are applicable across species. During the early 1970s, three very important middle-level evolutionary theories were contributed by [[Robert Trivers]]:<ref> | ||
{{cite journal|last=Trivers|first=Robert L.|title=The evolution of reciprocal altruism|journal=Quarterly Review of Biology|volume=46|issue=1|pages=35-57|year=1971|month=March|url=http://links.jstor.org/sici?sici=0033-5770%28197103%2946%3A1%3C35%3ATEORA%3E2.0.CO%3B2-S}}</ref><ref> | {{cite journal|last=Trivers|first=Robert L.|title=The evolution of reciprocal altruism|journal=Quarterly Review of Biology|volume=46|issue=1|pages=35-57|year=1971|month=March|url=http://links.jstor.org/sici?sici=0033-5770%28197103%2946%3A1%3C35%3ATEORA%3E2.0.CO%3B2-S}}</ref><ref> | ||
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== Environment of evolutionary adaptedness == | == Environment of evolutionary adaptedness == | ||
The term ''environment of evolutionary adaptedness'', often abbreviated EEA, was coined by [[John Bowlby]] as part of [[attachment theory]]. It refers to the environment to which a particular evolved mechanism is adapted. More specifically, the EEA is defined as the set of historically recurring selection pressures that formed a given adaptation, as well as those aspects of the environment that were necessary for the proper development and functioning of the adaptation. In the environment in which ducks evolved, for example, attachment of ducklings to their mother had great survival value for the ducklings. Because the first moving being that a duckling was likely to see was its mother, a psychological mechanism that evolved to form an attachment to the first moving being would therefore properly function to form an attachment to the mother. In novel environments, however, the mechanism can malfunction by forming an attachment to a dog or human instead. | The term ''environment of evolutionary adaptedness'', often abbreviated EEA, was coined by [[John Bowlby]] as part of [[attachment theory]]. It refers to the environment to which a particular evolved mechanism is adapted. More specifically, the EEA is defined as the set of historically recurring selection pressures that formed a given adaptation, as well as those aspects of the environment that were necessary for the proper development and functioning of the adaptation. In the environment in which ducks evolved, for example, attachment of ducklings to their mother had great survival value for the ducklings. Because the first moving being that a duckling was likely to see was its mother, a psychological mechanism that evolved to form an attachment to the first moving being would therefore properly function to form an attachment to the mother. In novel environments, however, the mechanism can malfunction by forming an attachment to a dog or human instead. | ||
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== Controversies == | == Controversies == | ||
{{main|Evolutionary psychology controversy}} | {{main|Evolutionary psychology controversy}} | ||
The application of evolutionary theory to animal behavior is uncontroversial. However, adaptationist approaches to human psychology are contentious, with critics questioning the scientific nature of evolutionary psychology, and with more minor debates within the field itself. The history of debate from the evolutionary psychology perspective is covered in detail by Segerstråle (2000) and Alcock (2001); also see a recent overview of EP with rebuttals to critics in [[John Tooby|Tooby, J.]] & [[Leda Cosmides|Cosmides, L.]] (2005). Conceptual foundations of evolutionary psychology.<ref>[[John Tooby|Tooby, J.]] & [[Leda Cosmides|Cosmides, L.]] (2005). Conceptual foundations of evolutionary psychology. In D. M. Buss (Ed.), ''The Handbook of Evolutionary Psychology'' (pp. 5-67). Hoboken, NJ: Wiley. [http://www.psych.ucsb.edu/research/cep/papers/bussconceptual05.pdf Full text]</ref> | The application of evolutionary theory to animal behavior is uncontroversial. However, adaptationist approaches to human psychology are contentious, with critics questioning the scientific nature of evolutionary psychology, and with more minor debates within the field itself. The history of debate from the evolutionary psychology perspective is covered in detail by Segerstråle (2000) and Alcock (2001); also see a recent overview of EP with rebuttals to critics in [[John Tooby|Tooby, J.]] & [[Leda Cosmides|Cosmides, L.]] (2005). Conceptual foundations of evolutionary psychology.<ref>[[John Tooby|Tooby, J.]] & [[Leda Cosmides|Cosmides, L.]] (2005). Conceptual foundations of evolutionary psychology. In D. M. Buss (Ed.), ''The Handbook of Evolutionary Psychology'' (pp. 5-67). Hoboken, NJ: Wiley. [http://www.psych.ucsb.edu/research/cep/papers/bussconceptual05.pdf Full text]</ref> Even more recently (Jan 2009) philosopher David J. Buller describes four foundational assertions of evolutionary psychology that he deems fallacious and argues why he so deems them.<ref name=buller2009>Buller DJ. (2009) [http://tinyurl.com/4wxfa2 Four Fallacies of Pop Evolutionary Psychology.] ''Scientific American'' January 2009 issue. pp. 74-81. | ||
* '''<u>Except from Editors:</u>''' A major, widely discussed branch of evolutionary psychology—Pop EP—holds that the human brain has many specialized mechanisms that evolved to solve the adaptive problems of our hunter-gatherer ancestors....The author and several other scholars suggest that some assumptions of Pop EP are flawed: that we can know the psychology of our Stone Age ancestors, that we can thereby figure out how distinctively human traits evolved, that our minds have not evolved much since the Stone Age, and that standard psychological questionnaires yield clear evidence of the adaptations.</ref> Philosopher of Science RC Richardson considers it speculation and not sound science.<ref name=richardson2010>Richardson RC. (2007,2010) [http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=12123 ''Evolutionary Psychology as Maladapted Psychology'']. 232 pages. MIT Press. ISBN 978-0-262-51421-7. | [http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=12123 Read first 50 pages online]. | Chapter titles: Introduction: Man's Place in Nature; The Ambitions of Evolutionary Psychology; Reverse Engineering and Adaptation; The Dynamics of Adaptation; Recovering Evolutionary History; Idle Darwinizing. | [http://books.google.com/books?id=KeqiKNFa3YgC&dq=evolutionary+psychology+as+maladapted&source=gbs_navlinks_s Google Book preview].</ref> | |||
==Notes== | ==Notes== | ||
{{reflist}} | {{reflist}} | ||
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* [http://www.toddkshackelford.com/ Evolutionary Psychology Lab], Florida Atlantic University | * [http://www.toddkshackelford.com/ Evolutionary Psychology Lab], Florida Atlantic University | ||
* [http://www.psych.upenn.edu/PLEEP/index.html The Pennsylvania Laboratory for Experimental Evolutionary Psychology] at the University of Pennsylvania | * [http://www.psych.upenn.edu/PLEEP/index.html The Pennsylvania Laboratory for Experimental Evolutionary Psychology] at the University of Pennsylvania | ||
* [http://ruccs.rutgers.edu/ArchiveFolder/Research%20Group/research.html Research Group on Evolution and Higher Cognition], Rutgers | * [http://ruccs.rutgers.edu/ArchiveFolder/Research%20Group/research.html Research Group on Evolution and Higher Cognition], Rutgers University | ||
* [http://else.econ.ucl.ac.uk/newweb/index.php Centre for Economic Learning and Social Evolution], at University College London | * [http://else.econ.ucl.ac.uk/newweb/index.php Centre for Economic Learning and Social Evolution], at University College London | ||
* [http://www.anth.ucsb.edu/projects/esm/ Evolution and the Social Mind] at UCSB. | * [http://www.anth.ucsb.edu/projects/esm/ Evolution and the Social Mind] at UCSB. | ||
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===A small sampling of papers and research concerning Evolutionary Psychology=== | ===A small sampling of papers and research concerning Evolutionary Psychology=== | ||
* [http://pinker.wjh.harvard.edu/articles/media/2004_10_29_religion.htm Evolutionary Psychology of Religion] by [[Steven Pinker]] | * [http://pinker.wjh.harvard.edu/articles/media/2004_10_29_religion.htm Evolutionary Psychology of Religion] by [[Steven Pinker]] | ||
* [http://itb.biologie.hu-berlin.de/~hagen/papers/Controversies.pdf Controversies Surrounding Evolutionary Psychology] by [http://itb.biologie.hu-berlin.de/~hagen/ Edward H. Hagen]. | * [http://itb.biologie.hu-berlin.de/~hagen/papers/Controversies.pdf Controversies Surrounding Evolutionary Psychology] by [http://itb.biologie.hu-berlin.de/~hagen/ Edward H. Hagen]. | ||
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===Online Videos=== | ===Online Videos=== | ||
* [http://video.google.com/videoplay?docid=3554279466299738997 Video] An interview of [[Steven Pinker]] by [[Robert Wright (journalist)]], offering a good discussion of Evolutionary Psychology. | * [http://video.google.com/videoplay?docid=3554279466299738997 Video] An interview of [[Steven Pinker]] by [[Robert Wright (journalist)]], offering a good discussion of Evolutionary Psychology. | ||
* [http://video.google.com/videoplay?docid=-4975549474851602314 Video] An interview of [[Edward O. Wilson]] by [[Robert Wright (journalist)]], which helps put Evolutionary Psychology in its scientific, academic, political and philosophical context. | * [http://video.google.com/videoplay?docid=-4975549474851602314 Video] An interview of [[Edward O. Wilson]] by [[Robert Wright (journalist)]], which helps put Evolutionary Psychology in its scientific, academic, political and philosophical context. | ||
* Video: [http://video.google.com/videoplay?docid=-3157675332479529894&q=margaret+mead+and+samoa&total=11&start=0&num=10&so=0&type=search&plindex=0 Margaret Mead and Samoa]. Good review of the nature vs. nurture debate triggered by Mead's book "Coming of Age in Samoa." | * Video: [http://video.google.com/videoplay?docid=-3157675332479529894&q=margaret+mead+and+samoa&total=11&start=0&num=10&so=0&type=search&plindex=0 Margaret Mead and Samoa]. Good review of the nature vs. nurture debate triggered by Mead's book "Coming of Age in Samoa."[[Category:Suggestion Bot Tag]] | ||
[[Category: | |||
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Biologists working in the field of evolutionary psychology argue that not only did the human body and its physiological characteristics evolve by means of natural selection, but also the human mind so evolved, including evolution of its manifold psychological, emotional and cognitive characteristics. They argue that human mental traits, including predispositions and biases, having evolved under pressure of natural selection during human evolution, reflect adaptations to the particular environments that prevailed before and during the period the human species (Homo sapiens) emerged from its ancestral lineage 200,000 years ago and evolved to a fully modern human species by some 50,000 years ago. They refer to the seminal period of psychological/cognitive adaptation to environmental circumstances as the era of evolutionary adaptedness, shorthanded to EEA, a period possibly extending to the Stone Age beginning about 2.5 million years ago.
By reconstructing, from paleobiological data and interpretations, the nature of the EEA — its selective biotic, social and abiotic environmental factors — evolutionary psychologists hope to gain insight into why humans today, to quote University of Cambridge evolutionary biologist and anthropologist Robert Foley:
...have propensities for certain types of thought, motivations, and behaviors ... [which] by inference, allow psychologists to consider whether contemporary humans are living under circumstances that are less than optimal and, indeed, may now be maladaptive. [1] |
Based on the Darwinian-Wallacean evolutionary principle of natural selection, and the concept of the EEA, evolutionary psychologists generate hypotheses and inferences in an attempt to explain mental traits — psychological traits such as aggressiveness; cognitive traits such as memory, perception, or speech. They aim to bring an adaptationist approach to psychological mechanisms similar in a way adaptionist explanations abound for physiological mechanisms. Evolutionary psychologists consider central the concept that evolution by means of natural selection has shaped mind and behavior. Though applicable to any organism with a nervous system, evolutionary psychology focuses mostly on humans.
Closely related fields are: human behavioral ecology, dual inheritance theory, and sociobiology.
Overview
Evolutionary psychology offers a new biological perspective on psychology, the biology of Darwin-Wallacism applied to the living brain-body system. At its broadest it views what some refer as 'human nature' as a complex of evolved psychological adaptations to recurring problems humans faced in the ancestral environment. Evolutionary psychology eliminates the historical division between the "soft" human social sciences and the "hard" natural sciences, having the same theoretical foundation as biology: Darwinian evolutionary theory. "In the future, the study of human psychology will be completely transformed by the Darwinian approach…it won’t be called ‘Evolutionary Psychology’. It will just be called ‘psychology'."[2]
Just as human physiology and evolutionary physiology has worked to identify physical adaptations of the body that represent "human physiological nature," the purpose of evolutionary psychology is to identify evolved emotional and cognitive adaptations that represent "human psychological nature." EP is, to quote Steven Pinker, "not a single theory but a large set of hypotheses" and a term which "has also come to refer to a particular way of applying evolutionary theory to the mind, with an emphasis on adaptation, gene-level selection, and modularity." EP proposes that the human brain comprises many functional mechanisms,[3] called psychological adaptations or evolved cognitive mechanisms or cognitive modules designed by the process of natural selection. Examples include language acquisition modules, incest avoidance mechanisms, cheater detection mechanisms, intelligence and sex-specific mating preferences, foraging mechanisms, alliance-tracking mechanisms, agent detection mechanisms, and so on. EP has roots in cognitive psychology and evolutionary biology (See also sociobiology). It also draws on behavioral ecology, artificial intelligence, genetics, ethology, anthropology, archaeology, biology, and zoology. EP is closely linked to sociobiology,[4] but there are key differences between them including the emphasis on domain-specific rather than domain-general mechanisms, the relevance of measures of current fitness, the importance of mismatch theory, and psychology rather than behaviour. Many evolutionary psychologists, however, argue that the mind consists of both domain-specific and domain-general mechanisms, especially evolutionary developmental psychologists. Most sociobiological research is now conducted in the field of behavioral ecology.[5]
The term evolutionary psychology was probably coined by Michael Ghiselin in his 1973 article in Science. Jerome Barkow, Leda Cosmides and John Tooby popularized the term "evolutionary psychology" in their highly influential 1992 book The Adapted Mind: Evolutionary Psychology and The Generation of Culture. EP has been applied to the study of many fields, including economics, aggression, law, psychiatry, politics, literature, and sex.
EP uses Nikolaas Tinbergen's four categories of questions and explanations of animal behavior. Two categories are at the species level; two, at the individual level, as noted in the table below.
How vs. Why Questions: | Sequential vs. Static Perspective | |
Historical/ Developmental Explanation of current form in terms of a historical sequence |
Current Form Explanation of the current form of species | |
Proximate How organisms’ structures function |
Ontogeny Developmental explanations for changes in individuals, from DNA to their current form |
Mechanism Mechanistic explanations for how an organism’s structures work |
Evolutionary Why organisms evolved the structures (adaptations) they have |
Phylogeny The history of the evolution of sequential changes in a species over many generations |
Adaptation A species trait that evolved to solve a reproductive or survival problem in the ancestral environment |
The species-level categories (often called “ultimate explanations”) are
- the function (i.e., adaptation) that a behavior serves and
- the evolutionary process (i.e., phylogeny) that resulted in the adaptation (functionality).
The individual-level categories are
- the development of the individual (i.e., ontogeny) and
- the proximate mechanism (e.g., neuroanatomy and hormones).
Evolutionary psychology mostly focuses on the adaptation (functional) category.
Principles of evolutionary psychology
Evolutionary psychology is a hybrid discipline that draws insights from modern evolutionary theory, biology, cognitive psychology, anthropology, economics, computer science, and paleoarchaeology. The discipline rests on a foundation of core premises. According to David Buss, a prominent researcher in the field, these include:
- Manifest behavior depends on underlying psychological mechanisms, information processing devices housed in the brain, in conjunction with the external and internal inputs that trigger their activation.
- Evolution by selection is the only known causal process capable of creating such complex organic mechanisms.
- Evolved psychological mechanisms are functionally specialized to solve adaptive problems that recurred for humans over deep evolutionary time.
- Selection designed the information processing of many evolved psychological mechanisms to be adaptively influenced by specific classes of information from the environment.
- Human psychology consists of a large number of functionally specialized evolved mechanisms, each sensitive to particular forms of contextual input, that get combined, coordinated, and integrated with each other to produce manifest behavior.
Similarly, Leda Cosmides and John Tooby, two of the founders of the field, offer these five foundational principles of evolutionary psychology:
- The brain is a physical system. It functions as a computer. Its circuits are designed to generate behavior that is appropriate to your environmental circumstances.
- Our neural circuits were designed by natural selection to solve problems that our ancestors faced during our species' evolutionary history.
- Consciousness is just the tip of the iceberg; most of what goes on in your mind is hidden from you. As a result, your conscious experience can mislead you into thinking that our circuitry is simpler than it really is. Most problems that you experience as easy to solve are very difficult to solve -- they require very complicated neural circuitry
- Different neural circuits are specialized for solving different adaptive problems.
- Our modern skulls house a stone age mind.[6]
General evolutionary theory
- Main article: Evolution
The roots of evolutionary psychology lie in the theory of evolution. Some evolutionary psychologists view their discipline not just as a sub-discipline of psychology but as a way in which they can apply evolutionary theory as a meta-theoretical framework within which to examine the entire field of psychology.[6] Many evolutionary biologists,however, challenge the basic premises of evolutionary psychology.[7]
Natural selection, a key component of evolutionary theory, involves three main ingredients:
- Genetically based inheritance of traits - some traits are passed down from parents to offspring in genes,
- Variation - heritable traits vary within a population (now we know that mutation is the source of this genetic variation),
- Differential survival and reproduction - these traits will vary in how strongly they promote the survival and reproduction of their bearers.
Selection refers to the process by which environmental conditions "select" organisms with the appropriate traits to survive; these organisms will have such traits more strongly represented in the next generation. This is the basis of adaptive evolution. Darwin's great claim was that this "natural selection" was creative - it could lead to new traits and even new species, it was centred on individual survival, and it could explain the broad scale patterns of evolution.
Many traits that are selected for can actually hinder survival of the organism while increasing its reproductive opportunities. Consider the classic example of the peacock's tail. It is metabolically costly, cumbersome, and essentially a "predator magnet." What the peacock's tail does do is attract mates. Thus, the type of selective process that is involved here is what Darwin called "sexual selection." Sexual selection can be divided into two types:
- Intersexual selection, which refers to the traits that one sex generally prefers in the other sex, (e.g. the peacock's tail).
- Intrasexual competition, which refers to the competition among members of the same sex for mating access to the opposite sex, (e.g. two stags locking antlers).
Inclusive fitness
Inclusive fitness theory, which was proposed by William D. Hamilton in 1964 as a revision to evolutionary theory, is basically a combination of natural selection, sexual selection, and kin selection. It refers to the sum of an individual's own reproductive success plus the effects the individual's actions have on the reproductive success of their genetic relatives. General evolutionary theory, in its modern form, is essentially inclusive fitness theory.
Inclusive fitness theory resolved the issue of how "altruism" evolved. The dominant, pre-Hamiltonian view was that altruism evolved via group selection: the notion that altruism evolved for the benefit of the group. The problem with this was that if one organism in a group incurred any fitness costs on itself for the benefit of others in the group, (i.e. acted "altruistically"), then that organism would reduce its own ability to survive and/or reproduce, therefore reducing its chances of passing on its altruistic traits. Furthermore, the organism that benefited from that altruistic act and only acted on behalf of its own fitness would increase its own chance of survival and/or reproduction, thus increasing its chances of passing on its "selfish" traits. Inclusive fitness resolved "the problem of altruism" by demonstrating that altruism can evolve via kin selection as expressed in Hamilton's rule:
- cost < relatedness × benefit
In other words, altruism can evolve as long as the fitness cost of the altruistic act on the part of the actor is less than the degree of genetic relatedness of the recipient times the fitness benefit to that recipient. This perspective reflects what is referred to as the gene-centered view of evolution and demonstrates that group selection is a very weak selective force. However, in recent years group selection has been making a comeback, (albeit a controversial one), as multilevel selection, which posits that evolution can act on many levels of functional organization, (including the "group" level), and not just the "gene" level.
System level and problem |
Author |
Basic ideas |
Example adaptations |
System Level: Individual Problem: How to survive? |
Charles Darwin (1859) |
Natural Selection (or “survival selection”)
The bodies and minds of organisms are made up of evolved adaptations designed to help the organism survive in a particular ecology (for example, the white fur of polar bears). |
Bones, skin, vision, pain perception, etc. |
System Level: Dyad
Problem: How to attract a mate and/or compete with members of one's own sex for access to the opposite sex?
|
Charles Darwin (1859) |
Sexual selection
Organisms can evolve physical and mental traits designed specifically to attract mates (e.g., the Peacock’s tail) or to compete with members of one’s own sex for access to the opposite sex (e.g., antlers). In most species, the effects of sexual selection are seen in males since they typically have a faster reproductive rate than do females. |
Peacock’s tail, antlers, courtship behavior, etc |
System Level: Problem: Gene replication. How to help those with whom we share genes survive and reproduce? |
William Hamilton (1964) |
Inclusive fitness (or a "gene’s eye view" of selection, "kin selection") / The evolution of sexual reproduction
Selection occurs most robustly at the level of the gene, not the individual, group, or species. Reproductive success can thus be indirect, via shared genes in kin. Being altruistic toward kin can thus have genetic payoffs. |
Altruism toward kin, parental investment, the behavior of the social insects with sterile workers (e.g., ants). |
System Level: Problem: |
Robert Trivers (1972) |
Parental Investment Theory / Parent - Offspring Conflict / Reproductive Value
The two sexes often have conflicting strategies regarding how much to invest in offspring, and how many offspring to have. Parents allocate more resources to their offspring with higher reproductive value (e.g., "mom always liked you best"). Parents and offspring may have conflicting interests (e.g., when to wean, allocation of resources among offspring, etc.). |
Sexually dimorphic adaptations that result in a "battle of the sexes," parental favoritism, timing of reproduction, parent-offspring conflict, sibling rivalry, etc. |
System Level: Non-kin small group Problem: How to succeed in competitive interactions with non-kin? How to select the best strategy given the strategies being used by competitors? |
von Neumann and Morgenstern (1944); Maynard Smith (1982) |
Game Theory / Evolutionary Game Theory Organisms adapt, or respond, to competitors depending on the strategies used by competitors. Strategies are evaluated by the probable payoffs of alternatives. In a population, this typically results in an "evolutionary stable strategy," or "evolutionary stable equilibrium" -- strategies that, on average, cannot be bettered by alternative strategies. |
Facultative, or frequency-dependent, adaptations. Examples: hawks vs. doves, cooperate vs. defect, fast vs. coy courtship, etc. |
System Level: Non-kin small group Problem: How to maintain mutually beneficial relationships with non-kin in repeated interactions?
|
Robert Trivers (1971) |
"Tit for Tat" Reciprocity
One can play nice with non-kin if a mutually beneficially reciprocal relationship is maintained across multiple social interactions, and cheating is punished. |
Cheater detection, emotions of revenge and guilt, etc. |
System Level:
Non-kin, large groups governed by rules and laws Problem: How to maintain mutually beneficial relationships with strangers with whom one may interact only once? |
Herbert Gintis (2000, 2003); and others. |
Generalized Reciprocity
(Also called "strong reciprocity"). One can play nice with non-kin strangers even in single interactions if social rules against cheating are maintained by neutral third parties (e.g., other individuals, governments, institutions, etc.), a majority group members cooperate by generally adhering to social rules, and social interactions create a positive sum game (i.e., a bigger overall "pie" results from group cooperation). Generalized reciprocity may be a set of adaptations that were designed for small in-group cohesion during times of high inter-tribal warfare with out-groups. Today the capacity to be altruistic to in-group strangers may result from a serendipitous generalization (or "mismatch") between ancestral tribal living in small groups and today's large societies that entail many single interactions with anonymous strangers. (The dark side of generalized reciprocity may be that these adaptations may also underlie aggression toward out-groups.) |
To in-group members:
Capacity for generalized altruism, acting like a "good Samaritan," cognitive concepts of justice, ethics and human rights. To out-group members: Capacity for xenophobia, racism, warfare, genocide. |
System Level: Large groups / culture. Problem: |
Richard Dawkins (1976) |
Memetic Selection
Genes are not the only replicators subject to evolutionary change. “Memes” (e.g., ideas, rituals, tunes, cultural fads, etc.) can replicate and spread from brain to brain, and many of the same evolutionary principles that apply to genes apply to memes as well. Genes and memes may at times co-evolve ("gene-culture co-evolution"). |
Language, music, evoked culture, etc. Some possible by-products, or "exaptations," of language may include writing, reading, mathematics, etc. |
Table from Mills, M.E. (2004). Evolution and motivation. Symposium paper presented at the Western Psychological Association Conference, Phoenix, AZ. April, 2004.
Middle-level evolutionary theories
Middle-level evolutionary theories are theories that encompass broad domains of functioning. They are compatible with general evolutionary theory but not derived from it. Furthermore, they are applicable across species. During the early 1970s, three very important middle-level evolutionary theories were contributed by Robert Trivers:[8][9][10]
- The theory of reciprocal altruism explains how altruism can arise amongst non-kin, as long as there is a sufficient probability of the recipient of the altruistic act reciprocating at a later date. The possibility was also noted by Trivers, later coined 'indirect altruism' by Richard D. Alexander, that reciprocation could be provided by third parties, raising the issue of social reputation.
- Parental investment theory refers to the different levels of investment in offspring on the part of each sex. For example, females in any species are defined as the sex with the larger gamete. In humans, females release approximately one large, metabolically costly egg per month, as opposed to the millions of relatively tiny and metabolically cheap sperm that are produced each day by males. Females are fertile for only a few days each month, while males are fertile every day of the month. Females also have a nine month gestation period, followed by a few years of lactation. Males' obligatory biological investment can be achieved with one copulatory act. Consequently, human females have a significantly higher obligatory investment in offspring than males do. (In some species, the opposite is true.) Because of this difference in parental investment between males and females, the sexes face different adaptive problems in the domains of mating and parenting. Therefore, it is predicted that the higher investing sex will be more selective in mating, and the lesser investing sex will be more competitive for access to mates. Thus, differences in behaviour between sexes is predicted to exist not because of maleness or femaleness per se, but because of different levels of parental investment.
- The theory of parent-offspring conflict rests on the fact that even though a parent and his/her offspring are 50% genetically related, they are also 50% genetically different. All things being equal, a parent would want to allocate their resources equally amongst their offspring, while each offspring may want a little more for themselves. Furthermore, an offspring may want a little more resources from the parent than the parent is willing to give. In essence, parent-offspring conflict refers to a conflict of adaptive interests between parent and offspring. However, if all things are not equal, a parent may engage in discriminative investment towards one sex or the other, depending on the parent's condition.
Additional middle-level evolutionary theories used in EP include:
- The Trivers-Willard hypothesis, which proposes that parents should invest more in the sex that gives them the greatest reproductive payoff (grandchildren) with increasing or marginal investment. Females are the heavier parental investors in our species. Because of that, females have a better chance of reproducing at least once in comparison to males. Thus, according to the Trivers-Willard hypothesis, parents in good condition are predicted to favor investment in sons, and parents in poor condition are predicted to favor investment in daughters.
- r/K selection theory, which, in ecology, relates to the selection of traits in organisms that allow success in particular environments. r-selected species, (in unstable or unpredictable environments), produce many offspring, each of which is unlikely to survive to adulthood, while K-selected species, (in stable or predictable environments), invest more heavily in fewer offspring, each of which has a better chance of surviving to adulthood.
- Evolutionary game theory, the application of population genetics-inspired models of change in gene frequency in populations to game theory.
- Evolutionary stable strategy, which refers to a strategy, which if adopted by a population, cannot be invaded by any competing alternative strategy.
Evolved psychological mechanisms
- Main article: Evolved psychological mechanisms
Evolutionary psychology is based on the belief that, just like hearts, lungs, livers, kidneys, and immune systems, cognition has functional structure that has a genetic basis, and therefore has evolved by natural selection. Like other organs and tissues, this functional structure should be universally shared amongst a species, and should solve important problems of survival and reproduction. Evolutionary psychologists seek to understand psychological mechanisms by understanding the survival and reproductive functions they might have served over the course of evolutionary history.
Evolutionary psychologists subdivide the concept of psychological mechanisms into two general categories:
- Domain-specific mechanisms, which deal with recurrent adaptive problems over the course of human evolutionary history
- Domain-general mechanisms, which deal with evolutionary novelty
Environment of evolutionary adaptedness
The term environment of evolutionary adaptedness, often abbreviated EEA, was coined by John Bowlby as part of attachment theory. It refers to the environment to which a particular evolved mechanism is adapted. More specifically, the EEA is defined as the set of historically recurring selection pressures that formed a given adaptation, as well as those aspects of the environment that were necessary for the proper development and functioning of the adaptation. In the environment in which ducks evolved, for example, attachment of ducklings to their mother had great survival value for the ducklings. Because the first moving being that a duckling was likely to see was its mother, a psychological mechanism that evolved to form an attachment to the first moving being would therefore properly function to form an attachment to the mother. In novel environments, however, the mechanism can malfunction by forming an attachment to a dog or human instead.
The genus Homo, which includes modern humans, appeared between 1.5 and 2.5 million years ago, a time that roughly coincides with the start of the Pleistocene 1.8 million years ago. Because the Pleistocene ended a mere 12,000 years ago, most human adaptations either newly evolved during the Pleistocene, or were maintained by stabilizing selection during the Pleistocene. Evolutionary psychology therefore proposes that the majority of human psychological mechanisms are adapted to reproductive problems frequently encountered in Pleistocene environments. In broad terms, these problems include those of growth, development, differentiation, maintenance, mating, parenting, and social relationships. To properly understand human mating psychology, for example, it is essential to recognize that in the EEA (as now) women got pregnant and men did not.
If humans are mostly adapted to Pleistocene environments, then some psychological mechanisms should occasionally exhibit “mismatches” to the modern environment, similar to the attachment patterns of ducks. One example is the fact that although about 10,000 people are killed with guns in the US annually,[11] whereas spiders and snakes kill only a handful, people nonetheless learn to fear spiders and snakes about as easily as they do a pointed gun, and more easily than an unpointed gun, rabbits or flowers.[12] A potential explanation is that spiders and snakes were a threat to human ancestors throughout the Pleistocene, whereas guns, rabbits and flowers were not. There is thus a mismatch between our evolved fear learning psychology and the modern environment.
In sum, evolutionary psychology argues that to properly understand the functions of the brain one must understand the properties of the environment in which the brain evolved.
Controversies
The application of evolutionary theory to animal behavior is uncontroversial. However, adaptationist approaches to human psychology are contentious, with critics questioning the scientific nature of evolutionary psychology, and with more minor debates within the field itself. The history of debate from the evolutionary psychology perspective is covered in detail by Segerstråle (2000) and Alcock (2001); also see a recent overview of EP with rebuttals to critics in Tooby, J. & Cosmides, L. (2005). Conceptual foundations of evolutionary psychology.[13] Even more recently (Jan 2009) philosopher David J. Buller describes four foundational assertions of evolutionary psychology that he deems fallacious and argues why he so deems them.[14] Philosopher of Science RC Richardson considers it speculation and not sound science.[15]
Notes
- ↑ Foley R. (1995) The Adaptive legacy of Human Evolution: A Search for the Environment of Evolutionary Adaptedness. Evolutionary Anthropology 44:194-203.
- Abstract: The growth of evolutionary psychology has led to renewed interest in what might be the significant evolutionary heritage of people living today, and in the extent to which humans are suited to a particular adaptive environment - the EEA. The EEA, though, is a new tool in the battery of evolutionary concepts, and it is important both that it is scrutinized for its utility, and that the actual reconstructions of the environments in which humans and hominids evolved are based on sound palaeobiological inference and an appropriate use of the phylogenetic context of primate evolution.
- ↑ Evans and Zarate 2005, 169
- ↑ evolutionary psychology Psyche Games. Accessed August 22, 2007
- ↑ Seltin, Melissa. (August 1988) The Evolution of Evolutionary Psychology: From Sociobiology to Evolutionary Psychology Accessed August 22, 2007
- ↑ 00265 Behavioral Ecology and Sociobiology Accessed August 22, 2007
- ↑ 6.0 6.1 Cosmides, Leda and John Tooby. January 13, 1997 Evolutionary Psychology: A Primer Accessed August 222007
- ↑ Gould SJ. (2002) The Structure of Evolutionary Theory. Harvard University Press. ISBN 9780674006133.
- ↑ Trivers, Robert L. (March 1971). "The evolution of reciprocal altruism". Quarterly Review of Biology 46 (1): 35-57.
- ↑ Trivers, Robert L. (1972). “Parental investment and sexual selection”, Bernard Campbell: Sexual selection and the descent of man, 1871-1971. Aldine Transaction (Chicago), 136-179. ISBN 0202020053.
- ↑ Trivers, Robert L. (1974). "Parent-offspring conflict". American Zoologist 14 (1): 249-264. DOI:10.1093/icb/14.1.249. Research Blogging.
- ↑ CDC pdf
- ↑ Öhman and Mineka 2001
- ↑ Tooby, J. & Cosmides, L. (2005). Conceptual foundations of evolutionary psychology. In D. M. Buss (Ed.), The Handbook of Evolutionary Psychology (pp. 5-67). Hoboken, NJ: Wiley. Full text
- ↑ Buller DJ. (2009) Four Fallacies of Pop Evolutionary Psychology. Scientific American January 2009 issue. pp. 74-81.
- Except from Editors: A major, widely discussed branch of evolutionary psychology—Pop EP—holds that the human brain has many specialized mechanisms that evolved to solve the adaptive problems of our hunter-gatherer ancestors....The author and several other scholars suggest that some assumptions of Pop EP are flawed: that we can know the psychology of our Stone Age ancestors, that we can thereby figure out how distinctively human traits evolved, that our minds have not evolved much since the Stone Age, and that standard psychological questionnaires yield clear evidence of the adaptations.
- ↑ Richardson RC. (2007,2010) Evolutionary Psychology as Maladapted Psychology. 232 pages. MIT Press. ISBN 978-0-262-51421-7. | Read first 50 pages online. | Chapter titles: Introduction: Man's Place in Nature; The Ambitions of Evolutionary Psychology; Reverse Engineering and Adaptation; The Dynamics of Adaptation; Recovering Evolutionary History; Idle Darwinizing. | Google Book preview.
References
- Alcock, John (2001). The Triumph of Sociobiology. Oxford: Oxford University Press.
- Barkow, Jerome; Cosmides, Leda; Tooby, John (1992) The Adapted Mind: Evolutionary Psychology and The Generation of Culture ISBN 0-19-510107-3.
- Barkow, Jerome (Ed.). (2006) Missing the Revolution: Darwinism for Social Scientists. Oxford: Oxford University Press.
- Buss, David, ed. (2005) The Handbook of Evolutionary Psychology. ISBN 0-471-26403-2.
- Buss, D.M. (2004). Evolutionary Psychology: The New Science of the Mind. Boston: Pearson Education, Inc.
- Clarke, Murray (2004). Reconstructing Reason and Representation. Cambridge: MIT Press.
- Evans, Dylan; Zarate, Oscar (2005) Introducing Evolutionary Psychology ISBN-1-84046-669-5.
- Ghiselin, Michael T. (1973). Darwin and Evolutionary Psychology. Science 179: 964-968.
- Joyce, Richard (2006). The Evolution of Morality. Boston: The Massachusetts Institute of Technology. ISBN 0-262-10112-2
- Miller, Geoffrey (2000). The Mating Mind: How Sexual Choice Shaped the Evolution of Human Nature. New York: Random House Inc.
- Pinker, S. (1997). How the Mind Works. New York: W.W. Norton & Co.
- Pinker, S. (2002). The Blank Slate: The Modern Denial of Human Nature. New York: Viking.
- Richards, Janet Radcliffe (2000). Human Nature After Darwin: A Philosophical Introduction. London: Routledge.
- Segerstrale, Ullica (2000). Defenders of the Truth: The Battle for Science in the Sociobiology Debate and Beyond. Oxford: Oxford University Press.
- Wilson, E.O. (1975) Sociobiology: The New Synthesis
- Wright, Robert (1995). The Moral Animal: Why We Are the Way We Are: The New Science of Evolutionary Psychology. ISBN 0-679-76399-6.
See also
- Behavioural genetics
- Cognitive modules
- Dual inheritance theory
- Environmental psychology
- Evolutionary developmental psychology
- Evolutionary educational psychology
- Evolutionary physiology
- Evolutionary psychology of religion
- Gene-centered view of evolution
- Human behavioral ecology
- Human evolution
- List of evolutionary psychologists
- Evolutionary Psychology Research Groups and Centers
- Philosophy of psychology
- Savanna principle
- Sociobiology
- Sociophysiology
- Wikipedia:Research resources/Evolution and human behavior
External links
- Human Behavior and Evolution Society
- Evolutionary Psychology page at Scholarpedia
- Evolutionary Psychology at the Open Directory Project
- Evolution's Voyage/Evolutionary psychology for the common person
Introductory peer-reviewed texts
- Buss, D. M. (1995). Evolutionary psychology: A new paradigm for psychological science. Psychological Inquiry, 6, 1-30. Full text
- Durrant, R., & Ellis, B.J. (2003). Evolutionary Psychology. In M. Gallagher & R.J. Nelson (Eds.), Comprehensive Handbook of Psychology, Volume Three: Biological Psychology (pp. 1-33). New York: Wiley & Sons. Full text
- Tooby, J. & Cosmides, L. (2005). Conceptual foundations of evolutionary psychology. In D. M. Buss (Ed.), The Handbook of Evolutionary Psychology (pp. 5-67). Hoboken, NJ: Wiley. Full text
A few introductory peer-reviewed papers and chapters
- Buss, D. M. (1995). Evolutionary psychology: A new paradigm for psychological science. Psychological Inquiry, 6, 1-30. Full text
- Durrant, R., & Ellis, B.J. (2003). Evolutionary Psychology. In M. Gallagher & R.J. Nelson (Eds.), Comprehensive Handbook of Psychology, Volume Three: Biological Psychology (pp. 1-33). New York: Wiley & Sons. Full text
- Kennair, L. E. O. (2002). Evolutionary psychology: An emerging integrative perspective within the science and practice of psychology. Human Nature Review, 2, 17-61. Full text
- Tooby, J. & Cosmides, L. (2005). Conceptual foundations of evolutionary psychology. In D. M. Buss (Ed.), The Handbook of Evolutionary Psychology (pp. 5-67). Hoboken, NJ: Wiley. Full text
Evolutionary Psychology Academic Societies
- Human Behavior and Evolution Society (HBES)- International society of researchers who use modern evolutionary theory to discover human nature.
- The International Society for Human Ethology (ISHE)- aims to promote ethological perspectives in the scientific study of humans worldwide.
- The Association for Politics and the Life Sciences (APLS)- an international and interdisciplinary association of scholars, scientists, and policymakers concerned with evolutionary, genetic, and ecological knowledge and its bearing on political behavior, public policy and ethics.
- Society for Evolutionary Analysis in Law
- The New England Institute for Cognitive Science and Evolutionary Psychology
- The NorthEastern Evolutionary Psychology Society ([NEEPS[www.neepsociety.com]); a regional society dedicated to encouraging scholorship and dialogue on the topic of evolutionary psychology]
- Society for Evolutionary Analysis in Law
Evolutionary Psychology Journals
- Evolution and Human Behavior - Academic journal of the Human Behavior and Evolution Society.
- Evolutionary Psychology - An open access peer-reviewed journal.
- Human Nature: An Interdisciplinary Biosocial Perspective
- The Journal of Social, Evolutionary & Cultural Psychology - An open access peer-reviewed journal.
- Biological Theory: Integrating Development, Evolution and Cognition - A journal devoted to theoretical advances in the fields of biology and cognition, with an emphasis on the conceptual integration afforded by evolutionary and developmental approaches. Free access to Winter 2006 issues
- Behavioral and Brain Sciences. Publishes target articles as well as peer review commentary, some of which have been related to evolutionary psychology.
Evolutionary Psychology Research Groups and Centers
- The UCSB Center for Evolutionary Psychology UCSB researchers in evolutionary psychology and allied disciplines.
- Individual Differences and Evolutionary Psychology Program at the Psychology Department of the University of Texas at Austin
- Evolution and Human Adaptation Program at the University of Michigan
- Human Evolutionary Behavioral Sciences at the University of New Mexico in Albuquerque.
- UCLA Center for Behavior, Evolution, and Culture
- IGERT Program in Evolutionary Modeling, University of Washington & Washington State University
- Program for Evolutionary Dynamics, Harvard University
- Evolutionary Anthropology Research Group, Durham University
- Human Evolutionary Ecology Group at the University College London
- Ethology and Evolutionary Psychology Program at the University of Arizona, Tucson
- The Evolutionary Psychology Research Group at Simon Fraser University
- Evolution and Behaviour Group and MSc Programme at Brunel University
- Center for Adaptive Behavior and Cognition, Max Planck Institute
- Max Planck Institute for Human Cognitive and Brain Science
- Biological Anthropology Program, UCLA
- Evolutionary Psychology Lab, Florida Atlantic University
- The Pennsylvania Laboratory for Experimental Evolutionary Psychology at the University of Pennsylvania
- Research Group on Evolution and Higher Cognition, Rutgers University
- Centre for Economic Learning and Social Evolution, at University College London
- Evolution and the Social Mind at UCSB.
- Ludwig-Boltzmann-Institute for Urban Ethology, Germany
- Behavioural Ecology at Simon Fraser University
- Behavioral Biology Laboratory University of Chicago
- Nebraska Behavioral Biology Group
- Evolutionary Psychology Research Group, Simon Fraser University, Canada
- Evolutionary Psychology and Behavior Ecology Group at the University of Liverpool
- Evolutionary World Politics, Department of Political Science, University of Washington
- International Paleopsychology Project
- New England Complex Systems Institute
- Group on Evolutionary Archaeology and Anthropology, University of Buenos Aires, Argentina.
- Evolusjonspsykologi og individuelle forskjeller/ Evolutionary Psychology and Individual Differences, Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
A small sampling of papers and research concerning Evolutionary Psychology
- Evolutionary Psychology of Religion by Steven Pinker
- Controversies Surrounding Evolutionary Psychology by Edward H. Hagen.
- The role of function in evolutionary psychology by Jennifer Mundale and William Bechtel
- [1] David Buss reprints.
- [2] Leda Cosmides and John Tooby reprints.
- [3] Martin Daly, Margo Wilson et al. reprints.
- [4] David C. Geary reprints.
- Ed Hagen reprints.
- What Is Evolutionary Psychology? by Clinical Evolutionary Psychologist Dale Glaebach.
Online Videos
- Video An interview of Steven Pinker by Robert Wright (journalist), offering a good discussion of Evolutionary Psychology.
- Video An interview of Edward O. Wilson by Robert Wright (journalist), which helps put Evolutionary Psychology in its scientific, academic, political and philosophical context.
- Video: Margaret Mead and Samoa. Good review of the nature vs. nurture debate triggered by Mead's book "Coming of Age in Samoa."