نتایج جستجو برای: hemispheric lateralization
تعداد نتایج: 10176 فیلتر نتایج به سال:
Standard models of hemispheric asymmetry assume the dychotomous division of functional competence between the two hemispheres. Individual subjects, however, often do not fit such prototypical patterns and show great variation with respect to the functional differentiation of their hemispheres. The present paper reviews the results of some of our investigations on the effect of various subject r...
In 1970, Marler set the idea of a parallel between human speech and birdsong, emphasizingthe many common properties in vocal development of both infants and songbirds. One of thebest-known features of human speech is the hemispheric specialization of the brain for itsperception and production. The lateralization for the production of song that has beenobserved in a number of...
BACKGROUND AND PURPOSE Insular cortex ischemia is proposed to mediate a sympathetic stimulus that leads to acute hyperglycemia after stroke. METHODS We retrospectively analyzed insular perfusion on perfusion CT (median 180 minutes after onset) in 35 patients. RESULTS We found no association of hypoperfusion (relative cerebral blood flow <0.51) with early (<6 hours) or delayed (<72 hours) hy...
Evidence from psychophysiological and behavioral investigations of lateralization in psychosis separates two clinical syndromes. A speculative model is offered in which the syndromes approximate the clinical features of paranoid compared with nonparanoid patients in investigations in which the groups have been distinguished in the psychology laboratory (Magaro 1980), and encompass the distincti...
BACKGROUND While hemispheric specialization of language processing is well established, lateralization of emotion processing is still under debate. Several conflicting hypotheses have been proposed, including right hemisphere hypothesis, valence asymmetry hypothesis and region-specific lateralization hypothesis. However, experimental evidence for these hypotheses remains inconclusive, partly be...
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