involutional psychosis
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involutional psychosis
[‚in·və′lü·shən·əl sī′kō·səs] (psychology)
A prolonged psychotic reaction occurring in late middle life, characterized by depression and paranoid ideas. Also known as involutional melancholia.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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