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Titolo:
Effects of dentate nucleus lesions on spatial and postural sensorimotor learning in rats
Autore:
Joyal, CC; Strazielle, C; Lalonde, R;
Indirizzi:
Univ Rouen, Fac Sci, Equipe Neurobiol Apprentissage, UPRES PSY CO EA 1780,F-76821 Mt St Aignan, France Univ Rouen Mt St Aignan France F-76821 1780,F-76821 Mt St Aignan, France Univ Montreal, Dept Psychol, Montreal, PQ H3C 3J7, Canada Univ Montreal Montreal PQ Canada H3C 3J7 ol, Montreal, PQ H3C 3J7, Canada Univ Nancy 1, Fac Med, Lab Pathol Mol & Cellulaire Nutr, F-54500 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54500 00 Vandoeuvre Nancy, France CHU Montreal, Hotel Dieu, Serv Neurol, Montreal, PQ H2W 1T8, Canada CHU Montreal Montreal PQ Canada H2W 1T8 rol, Montreal, PQ H2W 1T8, Canada
Titolo Testata:
BEHAVIOURAL BRAIN RESEARCH
fascicolo: 2, volume: 122, anno: 2001,
pagine: 131 - 137
SICI:
0166-4328(20010801)122:2<131:EODNLO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; CEREBELLAR LESIONS; EQUILIBRIUM BEHAVIOR; MUTANT MICE; MEMORY; DEGENERATION; PERFORMANCE; COGNITION; DEFICITS; MONKEYS;
Keywords:
cerebellum; deep cerebellar nuclei; motor performance; posture and equilibrium; spatial orientation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Lalonde, R Univ Rouen, Fac Sci, Equipe Neurobiol Apprentissage, UPRES PSY CO EA 1780,F-76821 Mt St Aignan, France Univ Rouen Mt St Aignan France F-76821 1 Mt St Aignan, France
Citazione:
C.C. Joyal et al., "Effects of dentate nucleus lesions on spatial and postural sensorimotor learning in rats", BEH BRA RES, 122(2), 2001, pp. 131-137

Abstract

The role of the dentate nucleus on spatial orientation, assessed by the Morris water maze test, and on postural sensorimotor performance, assessed byvertical grid, suspended wire, and rotorod tests? was investigated. Bilateral electrolytic lesions of the dentate nucleus slowed down the acquisitionof the hidden platform task of the Morris water maze, without affecting long-term retention, the probe trial, and the visuomotor guidance necessary for swimming toward a visible goal. In addition, reversal learning was impaired in the submerged platform condition. The lesions did not affect any of the motor performance scores. The selective impairment seen during acquisition of the hidden platform task is similar to that previously reported in rats with combined lesions of the cerebellar hemispheres and dentate, indicating a specific role for this region in spatial orientation. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 08:11:18