Answers are grounded in this paper and cite their sources.
Delusional misidentification of people otherwise well known, referred to as the Capgras syndrome, has been described in both functional and organic conditions. Evidence is accruing to suggest that it would always be prudent to search vigorously for an organic aetiology.
No takes yet. Share an insight, caveat, or question.
Bron Lipkin (1988) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: