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Evolutionary perspectives on paranoid disorder

D Schlager1

  • 1Department of Psychiatry and Behavioral Science, School of Medicine, State University of New York at Stony Brook, USA.

The Psychiatric Clinics of North America
|June 1, 1995
PubMed
Summary

Certain subtypes of delusional disorders (DD) may be abnormal behaviors linked to social and mating adaptations. These rare states could stem from hypersensitivity to environmental cues or misfiring behaviors in new situations.

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Area of Science:

  • Evolutionary psychology
  • Psychiatry
  • Behavioral science

Background:

  • Delusional disorders (DD) encompass diverse subtypes, some potentially representing atypical behavioral expressions.
  • Understanding the evolutionary underpinnings of social behaviors is crucial for interpreting certain psychiatric conditions.

Purpose of the Study:

  • To explore the hypothesis that specific subtypes of delusional disorders (DD) may represent evolved, albeit abnormal, behavioral adaptations.
  • To investigate the potential role of hypersensitivity or behavioral misfiring in the manifestation of rare delusional states.

Main Methods:

  • Conceptual analysis integrating evolutionary theory with psychiatric nosology.
  • Review of existing literature on social behavior, mating strategies, and delusional disorders.

Main Results:

  • Certain DD subtypes might reflect maladaptive variations of adaptive social or mating behaviors.
  • Delusional states could arise from an over-sensitivity to environmental threats/opportunities or from misinterpretation of novel cues.

Conclusions:

  • DD subtypes may offer insights into the evolutionary pressures shaping social interaction and mating.
  • Viewing these rare conditions through an evolutionary lens may illuminate their underlying mechanisms and potential therapeutic targets.

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