[The syndrome of Capgras: converging models]

Area of Science:

• Neuroscience
• Psychiatry

Context:

• Capgras syndrome is a complex delusional misidentification syndrome.
• Existing etiological theories for Capgras syndrome lack a unifying concept.

Purpose:

• To identify a common underlying concept across various Capgras syndrome etiological theories.
• To synthesize current understanding of Capgras syndrome's origins.

Summary:

• A review of Capgras syndrome literature and a new case study revealed commonalities in explanatory models.
• All models emphasize a central role for altered affect and inadequate belief evaluation.
• A 'splitting' phenomenon in information processing (temporal, anatomical, or representational) is a recurring theme.

Impact:

• This synthesis provides a more cohesive framework for understanding Capgras syndrome.
• Highlights the importance of affect and belief processing in delusional disorders.
• Suggests potential avenues for future research and clinical investigation into Capgras syndrome.