Collaboration between the hemispheres of a callosotomy patient. Emerging right hemisphere speech and the left hemisphere interpreter.
Brain
; 119 ( Pt 4): 1255-62, 1996 Aug.
Article
em En
| MEDLINE
| ID: mdl-8813288
ABSTRACT
Split brain patients who are initially unable to produce speech in their right hemispheres sometimes develop the ability to do so. Patient J.W., the subject of this report, is such a patient. At the time of his callosotomy, J.W. had a language dominant left hemisphere; his right hemisphere could understand both spoken and written language, but he was unable to speak. Fourteen years after his surgery, we found that J.W. was capable of naming approximately 25% of the stimuli presented to his left visual field (LVF). Now, 1 year later, we find that he can name about 60% of such stimuli. This late-developing speech ability appears to be consequence of long-term neural plasticity. However, the subject's extended verbal responses to LVF stimuli seem to result from a collaboration between the hemispheres and to involve the left hemisphere interpreter.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fala
/
Encéfalo
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Corpo Caloso
/
Idioma
/
Plasticidade Neuronal
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Brain
Ano de publicação:
1996
Tipo de documento:
Article