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Titolo:
CLINICAL AND POSITRON EMISSION TOMOGRAPHY STUDIES OF VISUAL APPERCEPTIVE AGNOSIA
Autore:
GROSSMAN M; GALETTA S; DING XS; MORRISON D; DESPOSITO M; ROBINSON K; JAGGI J; ALAVI A; REIVICH M;
Indirizzi:
HOSP UNIV PENN,DEPT NEUROL,3400 SPRUCE ST PHILADELPHIA PA 19104 UNIV PENN,SCH MED,DEPT NEUROL PHILADELPHIA PA 19104 UNIV PENN,SCH MED,DEPT REHABIL MED PHILADELPHIA PA 19104 UNIV PENN,SCH MED,DEPT RADIOL PHILADELPHIA PA 19104 UNIV PENN,WHARTON SCH BUSINESS ADM,DEPT STAT PHILADELPHIA PA 19104
Titolo Testata:
Neuropsychiatry, neuropsychology, and behavioral neurology
fascicolo: 1, volume: 9, anno: 1996,
pagine: 70 - 77
SICI:
0894-878X(1996)9:1<70:CAPETS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN EXTRASTRIATE CORTEX; OBJECT RECOGNITION; WORD-COMPREHENSION; SPATIAL VISION; ANATOMIC BASIS; DISSOCIATION; LESIONS; PROSOPAGNOSIA; ACTIVATION; RETRIEVAL;
Keywords:
APPERCEPTIVE AGNOSIA; VISUAL FUNCTION; CEREBRAL BLOOD FLOW; POSITRON EMISSION TOMOGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
51
Recensione:
Indirizzi per estratti:
Citazione:
M. Grossman et al., "CLINICAL AND POSITRON EMISSION TOMOGRAPHY STUDIES OF VISUAL APPERCEPTIVE AGNOSIA", Neuropsychiatry, neuropsychology, and behavioral neurology, 9(1), 1996, pp. 70-77

Abstract

Assessments of higher visual functioning and regional cerebral blood now (rCBF) using positron emission tomography were obtained in three visual apperceptive agnosics. Their clinical impairment included difficulty appreciating the perceptual features of line drawings, letters, and other visual material, despite relatively intact elementary visual functioning and access to visual information in semantic memory. rCBF was significantly reduced in temporooccipital cortices. Our findings suggest that apperceptive agnosia is associated with massive ventral visual system dysfunction that interferes with visual perceptual processing needed for object recognition.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 18:33:22