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Titolo:
DIRECT VISUAL PATHWAYS FOR REACHING MOVEMENTS IN THE MACAQUE MONKEY
Autore:
TANNE J; BOUSSAOUD D; BOYERZELLER N; ROUILLER EM;
Indirizzi:
INSERM,U94,16 AVE DOYEN LEPINE F-69500 BRON FRANCE INSERM,U94 F-69500 BRON FRANCE UNIV FRIBOURG,INST PHYSIOL CH-1700 FRIBOURG SWITZERLAND
Titolo Testata:
NeuroReport
fascicolo: 1, volume: 7, anno: 1995,
pagine: 267 - 272
SICI:
0959-4965(1995)7:1<267:DVPFRM>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSTERIOR PARIETAL CORTEX; RHESUS-MONKEY; SELECTIVE PERTURBATION; PREHENSION MOVEMENTS; PREFRONTAL CORTEX; PREMOTOR CORTEX; ORGANIZATION; DISSOCIATION; CONNECTIONS; OBJECT;
Keywords:
MOTOR CORTEX; EXTRASTRIATE CORTEX; PARIETAL CORTEX; VISUOSPATIAL PROCESSING; VISUOMOTOR INTEGRATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
J. Tanne et al., "DIRECT VISUAL PATHWAYS FOR REACHING MOVEMENTS IN THE MACAQUE MONKEY", NeuroReport, 7(1), 1995, pp. 267-272

Abstract

THE brain seems to process the location of objects faster than their intrinsic features, such as size, when these parameters are used to guide action. To uncover a potential anatomical substrate of these different processing speeds, we investigated in the monkey the pathways linking extrastriate visual cortex with the dorsal premotor area, a frontal area known to be involved in visually guided reaching movements. Retrogradely transported anatomical tracers were injected at physiologically defined sites and the distribution of labelled cells was examinedin the ipsilateral cortex. We found a projection to the dorsal premotor cortex from the parieto-occipital area (PO). This area receives direct projections from the primary visual cortex (V1), and is part of the dorsal visual stream involved in the processing of spatial information. No direct projections to the dorsal premotor cortex arise from theventral visual areas, thought to process object features. Our findingprovides evidence for direct pathways from the dorsal visual stream to the dorsal premotor cortex and supports the view that the location of objects is processed faster by the brain than their intrinsic features.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 16:46:18