The Capgras symptom and nondominant cerebral dysfunction.

Although the etiology of the Capgras symptom is still unknown, recent reports strongly support the role of organic factors. The authors present the case of a psychotic woman with Capgras symptoms who showed evidence of nondominant cerebral dysfunction, documented by neuropsychologic testing and electrophysiologic procedures. This observation lends credibility to the role of organic factors in the development of the Capgras phenomenon.