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Titolo:
ASSOCIATIVE VISUAL AGNOSIA RESULTING FROM A DISCONNECTION BETWEEN INTACT VISUAL MEMORY AND SEMANTIC SYSTEMS
Autore:
CARLESIMO GA; CASADIO P; SABBADINI M; CALTAGIRONE C;
Indirizzi:
IRCCS S LUCIA,VIA ARDEATINA 306 I-00179 ROME ITALY UNIV ROMA TOR VERGATA,NEUROL CLIN I-00173 ROME ITALY
Titolo Testata:
Cortex
fascicolo: 4, volume: 34, anno: 1998,
pagine: 563 - 576
SICI:
0010-9452(1998)34:4<563:AVARFA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
FACE RECOGNITION; OBJECT CONSTANCY; IMPAIRMENT; HEMISPHERE; ROUTES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
G.A. Carlesimo et al., "ASSOCIATIVE VISUAL AGNOSIA RESULTING FROM A DISCONNECTION BETWEEN INTACT VISUAL MEMORY AND SEMANTIC SYSTEMS", Cortex, 34(4), 1998, pp. 563-576

Abstract

We report the case of a patient (RC) who developed a severe visual agnosia, associated to alexia without agraphia, color anemia and amnesia, following an ischemic stroke in the territory supplied by the left posterior cerebral artery. Based on his proficient performance on testsevaluating analysis of elementary visual features, formation of viewer-centered and object-centered representations of visual stimuli and discrimination between drawings representing real and unreal objects, we concluded that the critical locus of deficit was a disconnection between the normally functioning visual memory store and the semantic system. RC's disturbance in visual processing of human faces paralleled his recognition disorder of other classes of objects. The possible contribution of neurobiological factors in determining RC's agnosic deficit is discussed.

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Documento generato il 01/12/20 alle ore 07:06:19