| amnesia | <neurology> Lack or loss of memory, inability to remember past experiences. Origin: Gr. Amnesia = forgetfulness (05 Feb 1998) |
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| amnesia, retrograde | Amnesia for events that occurred before the onset of amnesia. (12 Dec 1998) |
| anterograde amnesia | Amnesia in reference to events occurring after the trauma or disease that caused the condition. (05 Mar 2000) |
| retrograde amnesia | Amnesia in reference to events that occurred before the trauma or disease that caused the condition. (05 Mar 2000) |
| posthypnotic amnesia | Selective forgetting, after a hypnotic state, of events occurring during hypnosis or of information stored in long-term memory, such as one's name, address, and names of relatives. (05 Mar 2000) |
| emotional amnesia | A numbness of feeling and emotion whose aetiology is psychological. (05 Mar 2000) |
| transient global amnesia | A memory disorder seen in middle aged and elderly persons characterised by an episode of amnesia and bewilderment which persists for several hours; during the episode the patient has a memory defect for present and recent past events, but is fully alert, oriented, capable of high-level intellectual activity, and has a normal neurological examination. Typically, these amnesic episodes occur spontaneously, and most patients experience only one; of uncertain aetiology-probably ischemic, but not due to atherosclerosis. (05 Mar 2000) |
| traumatic amnesia | The loss or disturbance of memory following an insult or injury to the brain of the type that accompanies a head injury, or excessive use of alcohol, or following the cessation of alcohol ingestion or other psychoactive drugs; or loss or disturbance of memory of the type seen in hysteria and other forms of dissociative disorders. (05 Mar 2000) |
| lacunar amnesia | Amnesia in reference to isolated events. (05 Mar 2000) |
| psychogenic | <psychology> Produced or caused by psychic or mental factors rather than organic factors. Origin: Gr. Gennan = to produce (18 Nov 1997) |
| psychogenic deafness | Hearing loss without evidence of organic cause or malingering; often follows severe psychic shock. Synonym: functional deafness, hysterical deafness. (05 Mar 2000) |
| psychogenic nocturnal polydipsia | See: psychogenic nocturnal polydipsia syndrome. (05 Mar 2000) |
| psychogenic nocturnal polydipsia syndrome | <syndrome> Emotionally induced excessive water drinking at night. (05 Mar 2000) |
| psychogenic pain | Somatoform pain; pain which is associated or correlated with a psychological, emotional, or behavioural stimulus. Synonym: psychalgia, somatoform pain. (05 Mar 2000) |
| psychogenic pain disorder | A disorder in which the principal complaint is pain that is out of proportion to objective findings and that is related to psychological factors. (05 Mar 2000) |