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Titolo:
LATERALIZATION OF BRAIN MECHANISMS UNDERLYING AUTOMATIC AND CONTROLLED FORMS OF SPATIAL ORIENTING OF ATTENTION
Autore:
GAINOTTI G;
Indirizzi:
CATHOLIC UNIV SACRED HEART,POLICLIN GEMELLI LARGO A GEMELLI,NEUROL INST I-00168 ROME ITALY
Titolo Testata:
Neuroscience and biobehavioral reviews
fascicolo: 4, volume: 20, anno: 1996,
pagine: 617 - 622
SICI:
0149-7634(1996)20:4<617:LOBMUA>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNILATERAL VISUAL NEGLECT; VESTIBULAR STIMULATION; VISUOSPATIAL NEGLECT; HEMISPATIAL NEGLECT; HEMINEGLECT; SPACE; DAMAGE; REHABILITATION; ORIENTATION; REMISSION;
Keywords:
LATERALIZATION; BRAIN MECHANISMS; SPATIAL ORIENTING; ATTENTION; AUTOMATIC ORIENTING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
48
Recensione:
Indirizzi per estratti:
Citazione:
G. Gainotti, "LATERALIZATION OF BRAIN MECHANISMS UNDERLYING AUTOMATIC AND CONTROLLED FORMS OF SPATIAL ORIENTING OF ATTENTION", Neuroscience and biobehavioral reviews, 20(4), 1996, pp. 617-622

Abstract

Unilateral Spatial Neglect (USN) can be considered as a defect in spatial orienting of attention toward the half space contralateral to thedamaged hemisphere. Since the classical work of Brain, W. R. Brain 64:224-272 (1941), several authors have emphasized that this defect is definitely more frequent and severe in patients with right brain damage, but the reason for this hemispheric asymmetry has remained controversial. Several investigations conducted with different experimental paradigms in different laboratories have shown that only automatic orienting of attention toward stimuli arising in the half space contralateral to the damaged hemisphere is disrupted in USN, whereas controlled, volitional orienting can be more or less completely spared. The hypothesis that at the level of the right hemisphere, spatial orienting of attention may be mainly prompted by automatic mechanisms may, therefore,be advanced. By contrast, the left hemisphere might play a leading role in mechanisms underlying volitional orienting of attention. According to this model, recovery from USN could be due to the substitution of the lost automatic orienting mechanisms with the spared volitional orienting mechanisms subserved by the intact left hemisphere. Copyright(C) 1996 Elsevier Science Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 00:02:43