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[Capgras syndrome: evolution of the hypotheses]
1Centre de recherche Fernand-Seguin, Université de Montréal, Québec.
Summary
This review traces the evolution of Capgras' syndrome hypotheses, revealing a shift from psychodynamic to neurological interpretations. The findings pave the way for experimental testing of these diverse viewpoints.
Area of Science:
- Neuroscience
- Psychology
- Psychiatry
Context:
- Capgras' syndrome, a delusional misidentification, has been interpreted through various theoretical lenses.
- Understanding its evolution requires examining historical hypotheses from psychodynamic, neurological, and neuropsychological perspectives.
Purpose:
- To trace the historical development of hypotheses concerning the mechanisms underlying Capgras' syndrome.
- To identify major shifts in theoretical interpretations of the syndrome over time.
Summary:
- The evolution of Capgras' syndrome hypotheses reveals two major stages: an early psychodynamic phase (post-1923) and a later neurological phase driven by observations of organic dysfunction.
- A small number of mixed hypotheses also emerged, reflecting the complexity of the syndrome.
- The review encompasses over 60 studies from 1866 to 1994, selected for their clinical relevance and theoretical innovation.
Impact:
- This historical overview highlights the diverse theoretical landscape of Capgras' syndrome.
- It establishes a foundation for future research aimed at experimentally testing the various etiological viewpoints.