The effect of semantic relations on the memory deficit associated with Parkinson's disease.
Analysis of a series of verbal memory experiments reveals a systematic performance deficit in subjects with Parkinson's disease, relative to matched normal and right-hemisphere stroke controls, in both recall and recognition tasks. Parkinson patients benefit less from semantic recall cues; they find semantically mediated synonym detections particularly difficult; and they show reduced benefits from the introduction of semantically novel material in a recall task. Their recall is as well organized semantically as that of normal controls, but reduced in amount. Recognition deficits arise principally from increases in false positive responses.
D000368:Aged; D000425:Alcohol Amnestic Disorder / Q000523:psychology; D000647:Amnesia / Q000523:psychology*; D002561:Cerebrovascular Disorders / Q000523:psychology; D006801:Humans; D006816:Huntington Disease / Q000523:psychology; D008570:Memory, Short-Term; D011939:Mental Recall; D010300:Parkinson Disease / Q000523:psychology*; D012660:Semantics; D013067:Speech Perception; D014706:Verbal Learning