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Titolo:
Anterograde and retrograde amnesia in rats with large hippocampal lesions
Autore:
Winocur, G; McDonald, RM; Moscovitch, M;
Indirizzi:
Baycrest Ctr Geriatr Care, Rotman Res Inst, Dept Psychol, Toronto, ON M6A 2E1, Canada Baycrest Ctr Geriatr Care Toronto ON Canada M6A 2E1 o, ON M6A 2E1, Canada Trent Univ, Dept Psychol, Peterborough, ON K9J 7B8, Canada Trent Univ Peterborough ON Canada K9J 7B8 eterborough, ON K9J 7B8, Canada Univ Toronto, Dept Psychol, Toronto, ON M5S 1A1, Canada Univ Toronto Toronto ON Canada M5S 1A1 ychol, Toronto, ON M5S 1A1, Canada Univ Toronto, Dept Psychiat, Toronto, ON M5S 1A1, Canada Univ Toronto Toronto ON Canada M5S 1A1 chiat, Toronto, ON M5S 1A1, Canada Univ Toronto, Erindale Coll, Dept Psychol, Toronto, ON M5S 1A1, Canada Univ Toronto Toronto ON Canada M5S 1A1 ychol, Toronto, ON M5S 1A1, Canada
Titolo Testata:
HIPPOCAMPUS
fascicolo: 1, volume: 11, anno: 2001,
pagine: 18 - 26
SICI:
1050-9631(2001)11:1<18:AARAIR>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
THALAMIC INFARCTION; BILATERAL LESIONS; MEMORY; CORTEX; DAMAGE; DISCRIMINATION; CONSOLIDATION; IMPAIRMENT; RETENTION; MONKEYS;
Keywords:
hippocampal lesions; anterograde amnesia; retrograde amnesia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Winocur, G Baycrest Ctr Geriatr Care, Rotman Res Inst, Dept Psychol, 3560 Bathurst St, Toronto, ON M6A 2E1, Canada Baycrest Ctr Geriatr Care 3560 Bathurst St Toronto ON Canada M6A 2E1
Citazione:
G. Winocur et al., "Anterograde and retrograde amnesia in rats with large hippocampal lesions", HIPPOCAMPUS, 11(1), 2001, pp. 18-26

Abstract

A test of socially acquired food preferences was used to study the effectsof large lesions to the hippocampal formation (HPC) on anterograde and retrograde memory in rats. In the anterograde test, rats with HPC lesions normally acquired the food preference but showed a faster rate of forgetting than control groups. When the food preference was acquired preoperatively, HPC groups exhibited a temporally graded retrograde amnesia in which memory was impaired when the preference was acquired within 2 days of surgery but not at longer delays. The results support the traditional theory that the HPC contributes to the consolidation of newly acquired information into a durable memory trace that is represented in other brain areas. Consistent withthis view, the results indicate that, once a memory trace is consolidated,the HPC does not participate in its storage or retrieval. The possibility is considered that extrahippocampal areas in the medial temporal lobe are needed to maintain a memory trace throughout its existence. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 13:58:08