catalepsy (kăt`əlĕp'sē), pathological condition characterized by a loss of consciousness accompanied by rigidity of muscles that keeps limbs in any position in which they are placed. Attacks vary from several minutes to days and occur in a variety of clinical syndromes, most frequently in schizophrenia, epilepsy, and hysteria.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
the phenomenon of “waxy rigidity,” observed incatatonia or hypnotic sleep (hypnosis). With an increase in mus-cle tonus, there is an onset of rigidity (flexible rigidity), so thateither the entire body or the extremities remain in any positionin which they are placed.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
Suspended animation with loss of voluntary motion associated with hysteria and the schizophrenic reactions in humans, and with organic nervous system disease in animals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
a state of prolonged rigid posture, occurring for example in schizophrenia or in hypnotic trances
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005