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KMID : 0607520190270010001
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Korean Journal of Psychosomatic Medicine
2019 Volume.27 No. 1 p.1 ~ p.12
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Evolutionary Model of Individual Behavioural Variations
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Park Han-Son
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Abstract
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The behavioural patterns of individuals in the same species are very diverse. The phenomenon in which different behavioural phenotypes are maintained in the same species for long time can be explained by niche specialization or frequency dependent selection, but it has not been proven yet. Especially, the high prevalence of mental illnesses as extreme behaviour patterns is one of the challenges of evolutionary psychology. From an evolutionary point of view, several frameworks for studying various patterns of behaviours or psychopathologies may be proposed. In this paper, I briefly explain animal models, personality factor models, DSM-IV multiaxial models, FSD models, and RDoC models, and discuss their advantages and disadvantages, focusing on the evolutionary approach to behavioural variation among individuals.
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KEYWORD
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Evolutionary psychology, Variation, Behavioural pattern, Psychopathology
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