Neurodevelopmental Plasticity in Pre- and Postnatal Environmental Interactions : Implications for Psychiatric Disorders from an Evolutionary Perspective

Psychiatric disorders are disadvantageous behavioral phenotypes in humans. Accordingly, a recent epidemiological study has reported decreased fecundity in patients with psychiatric disorders, such as schizophrenia and autism spectrum disorders. Moreover, the fecundity of the relatives of these patie...

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Détails bibliographiques
Publié dans:Neural plasticity. - 1998. - 2015(2015) vom: 09., Seite 291476
Auteur principal: Lee, Young-A (Auteur)
Autres auteurs: Yamaguchi, Yoshie, Goto, Yukiori
Format: Article en ligne
Langue:English
Publié: 2015
Accès à la collection:Neural plasticity
Sujets:Journal Article Research Support, Non-U.S. Gov't Review
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520 |a Psychiatric disorders are disadvantageous behavioral phenotypes in humans. Accordingly, a recent epidemiological study has reported decreased fecundity in patients with psychiatric disorders, such as schizophrenia and autism spectrum disorders. Moreover, the fecundity of the relatives of these patients is not exceedingly higher compared to the fecundity of the relatives of normal subjects. Collectively, the prevalence of psychiatric disorders among humans is expected to decrease over generations. Nevertheless, in reality, the prevalence rates of psychiatric disorders in humans either have been constant over a long period of time or have even increased more recently. Several attempts to explain this fact have been made using biological mechanisms, such as de novo gene mutations or variants, although none of these explanations is fully comprehensive. Here, we propose a hypothesis towards understanding the biological mechanisms of psychiatric disorders from evolutionary perspectives. This hypothesis considers that behavioral phenotypes associated with psychiatric disorders might have emerged in the evolution of organisms as a neurodevelopmental adaptation against adverse environmental conditions associated with stress 
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