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Titolo:
Identifying cortical inputs to the rat hippocampus that subserve allocentric spatial processes: A simple problem with a complex answer
Autore:
Aggleton, JP; Vann, SD; Oswald, CJP; Good, M;
Indirizzi:
Cardiff Univ, Sch Psychol, Cardiff CF10 3YG, S Glam, Wales Cardiff Univ Cardiff S Glam Wales CF10 3YG ardiff CF10 3YG, S Glam, Wales
Titolo Testata:
HIPPOCAMPUS
fascicolo: 4, volume: 10, anno: 2000,
pagine: 466 - 474
SICI:
1050-9631(2000)10:4<466:ICITTR>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
CINGULUM BUNDLE LESIONS; PERIRHINAL CORTEX LESIONS; ANTERIOR THALAMIC NUCLEI; ENTORHINAL CORTEX; FORNIX TRANSECTION; WORKING-MEMORY; WATER MAZE; RETROHIPPOCAMPAL LESIONS; RETROSPLENIAL CORTEX; POSTRHINAL CORTICES;
Keywords:
hippocampus; spatial memory; entorhinal cortex; subiculum;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
75
Recensione:
Indirizzi per estratti:
Indirizzo: Aggleton, JP Cardiff Univ, Sch Psychol, POB 901, Cardiff CF10 3YG, S Glam,Wales Cardiff Univ POB 901 Cardiff S Glam Wales CF10 3YG lam, Wales
Citazione:
J.P. Aggleton et al., "Identifying cortical inputs to the rat hippocampus that subserve allocentric spatial processes: A simple problem with a complex answer", HIPPOCAMPUS, 10(4), 2000, pp. 466-474

Abstract

A consideration of the cortical projections to the hippocampus provides a number of candidate regions that might provide distal sensory information needed for allocentric processing. Prominent among the input regions are theentorhinal cortex, the perirhinal cortex, the postrhinal cortex, and the retrosplenial cortex. A review of these sites reveals the surprising fact that in spite of their anatomical connections, removal of the perirhinal and postrhinal cortices has little or no effect on spatial tasks and hence doesnot functionally disconnect the hippocampus. Extensive retrosplenial lesions have only mild effects, and even lesions of the entorhinal cortex only partially mimic the effects of hippocampal lesions upon tests of spatial memory. In contrast, studies using c-fos imaging support the involvement of the entorhinal, postrhinal, and retrosplenial cortices, but not the perirhinal cortex. It is argued that there exist multiple aspects of spatial memory,and this is reflected in the multiple routes by which cortical informationcan reach the hippocampus. One consequence is that lesions in a single site often have surprisingly mild effects on standard spatial tests. (C) 2000 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 10:08:03