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Titolo:
FIELD-SPECIFIC DEFICITS IN VISUAL-IMAGERY FOLLOWING HEMIANOPIA DUE TOUNILATERAL OCCIPITAL INFARCTS
Autore:
BUTTER CM; KOSSLYN S; MIJOVICPRELEC D; RIFFLE A;
Indirizzi:
UNIV MICHIGAN,DEPT PSYCHOL,580 UNION DR ANN ARBOR MI 48109 HARVARD UNIV,DEPT PSYCHOL CAMBRIDGE MA 02138
Titolo Testata:
Brain
, volume: 120, anno: 1997,
parte:, 2
pagine: 217 - 228
SICI:
0006-8950(1997)120:<217:FDIVFH>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL BLOOD-FLOW; MENTAL-IMAGERY; SPATIAL NEGLECT; BRAIN DISEASE; MINDS EYE; PERCEPTION; PATTERNS; STIMULI; LESIONS; ANGLE;
Keywords:
VISUAL IMAGERY; OCCIPITAL LOBE; HEMIANOPIA; INFARCT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
C.M. Butter et al., "FIELD-SPECIFIC DEFICITS IN VISUAL-IMAGERY FOLLOWING HEMIANOPIA DUE TOUNILATERAL OCCIPITAL INFARCTS", Brain, 120, 1997, pp. 217-228

Abstract

Patients with stable, homonymous hemianopia due to unilateral occipital infarcts and control subjects performed a task in which they judgedwhether or not an arrow was pointing at one of the dots in a pattern of riots they had recently seen in free vision, but was no longer visible. This task, as shown in prior studies as well as in the present one, involves the use of visual imagery. The patients made more errors when the arrow pointed to the side ipsilateral to their hemianopia thanthey did when the arrow pointed to the side contralateral to their hemianopia. The patients' performance in control tasks indicated that this impairment was not due to deficits in several non-imaginal processes required to perform the imagery task namely scanning the dots and perceiving their spatial positions, memory for their position and encoding arrow direction. These findings support the view that visual imagery involves topographically organized visual areas of the occipital lobe.

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Documento generato il 03/04/20 alle ore 02:57:07