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Fernanda Cristina Leite Magliaro, Sandro Luiz de Andrade Matas, Carla Gentile Matas
BACKGROUND: Cognitive potential--P300 assessment in individuals with right hemisphere ischemic lesion due to ischemic stroke. AIM: To characterize the cognitive potential--P300 in right-handed individuals with right hemisphere ischemic lesion, and to compare such data to those obtained in normal individuals. METHOD: Anamnesis, conventional audiologic assessment and cognitive potential (P300) were carried out in 17 subjects with right hemisphere lesions (research group) and in 25 normal individuals (control group), aged between 20 and 70 years...
October 2009: Pró-fono: Revista de Atualização Científica
M I García-Ogueta
INTRODUCTION: Both cognitive psychology and neuropsychology require an approach to the multidimensional 'attention'. DEVELOPMENT: Attention permits behaviour to be suitable to the task in hand. According to the situation or activity required, the components or mechanisms of attention necessary vary (selectivity, alertness, vigilance, focus, inhibitory control mechanisms, etc.)as do the different neural networks involved. In the different neuropsychological syndromes different components and attention mechanisms are affected...
March 1, 2001: Revista de Neurologia
N Ortiz, L Barraquer Bordas, M Dourado, A Rey, A Avila
When cerebral infarction determines hemiplegia or hemiparesia which accompany a hemilateral sensitive deficit and hemianopsia and even neuropsychologic symptoms (aphasic alterations in the case of injury to the left hemisphere, heminegligence and anosognosy in the case of injury to the right hemisphere) the involvement of a sylvian artery syndrome is usually considered. Nonetheless, recent contributions have reported that such symptoms may appear in infarctions of the territory of the posterior cerebral artery...
June 1993: Neurología: Publicación Oficial de la Sociedad Española de Neurología
P Gras, M E Virat-Brassaud, A Graule, N André, M Giroud, R Dumas
The aim of this study was to evaluate the influence of each hemispheric functional arousal (right or left) on the designation of a subjective egocentric reference. The subjective designation of a egocentric reference was measured and compared in 20 right-handers healthy volunteers in cognitive tasks concerning either the right or the left hemisphere. The location of the egocentric reference was different during right or left hemispheric arousal. The hemispheric arousal induce a displacement of the egocentric reference to the contralateral space...
1993: Revue Neurologique
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