doppelganger

A delusion that a double of a person or place exists elsewhere; it is related to other defects in recognition and suggests organic disease in the non-dominant parietal lobe

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doppelgänger

Psychiatry A delusion that a double of a person or place exists elsewhere; it is related to other defects in recognition and suggests organic disease in the nondominant parietal lobe. See Depersonalization disorder, Schizophrenia.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.