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Titolo:
The disparate effects of Alzheimer's disease and Huntington's disease on semantic memory
Autore:
Rohrer, D; Salmon, DP; Wixted, JT; Paulsen, JS;
Indirizzi:
Univ S Florida, Dept Psychol, Tampa, FL 33620 USA Univ S Florida Tampa FLUSA 33620 rida, Dept Psychol, Tampa, FL 33620 USA Univ Calif San Diego, Dept Neurosci, San Diego, CA 92103 USA Univ Calif San Diego San Diego CA USA 92103 osci, San Diego, CA 92103 USA Univ Calif San Diego, Dept Psychol, San Diego, CA 92103 USA Univ Calif SanDiego San Diego CA USA 92103 chol, San Diego, CA 92103 USA Univ Iowa, Dept Psychiat, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 , Dept Psychiat, Iowa City, IA 52242 USA
Titolo Testata:
NEUROPSYCHOLOGY
fascicolo: 3, volume: 13, anno: 1999,
pagine: 381 - 388
SICI:
0894-4105(199907)13:3<381:TDEOAD>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
VERBAL RECALL; RETRIEVAL; DEMENTIA; RECOGNITION; KNOWLEDGE; DEFICIT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Rohrer, D Univ S Florida, Dept Psychol, BEH 339,4202 E Fowler Ave, Tampa, FL 33620 USA Univ S Florida BEH 339,4202 E Fowler Ave Tampa FL USA 33620 USA
Citazione:
D. Rohrer et al., "The disparate effects of Alzheimer's disease and Huntington's disease on semantic memory", NEUROPSYCHL, 13(3), 1999, pp. 381-388

Abstract

Alzheimer's disease (AD) and Huntington's disease (HD) impair performance on semantic memory tasks, but researchers disagree on whether AD and HD cause these impairments in the same manner. According to one view, AD disruptsthe storage of semantic memories, whereas HD disrupts the retrieval of semantic memories. Dissenters argue that AD, like HD, disrupts retrieval. In this study, participants generated category exemplars (e.g., kinds of fruits) for 1 min, and response latencies were examined. Relative to healthy controls, the 12 AD patients produced a larger proportion of responses earlier in the recall period, consistent with the view that AD patients quickly exhaust their limited supply of items in storage. By contrast, the 12 HD patients produced a larger proportion of their responses late in the recall period, consistent with the view that HD slows retrieval.

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Documento generato il 25/09/20 alle ore 08:37:44