Cerebral asymmetry in congenitally deaf subjects

Panou, L.; Sewell, D. F.

doi:10.1016/0028-3932(84)90084-8

Cited by 10 publications

(1 citation statement)

References 14 publications

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“…For example, in Sanders, Wright, and EllisÕs (1989) study, a RVF (left hemisphere) advantage was obtained for semantic judgment on the part of hearing subjects, while a LVF (right hemisphere) advantage was obtained on the part of profoundly deaf subjects who were exposed to total communication. By contrast, Panou and Sewell (1984) observed a RVF advantage in both hearing and deaf who were native signers, and Wilson (1983) obtained the standard RVF advantage for the hearing subjects, and no VF advantage for deaf educated with sign language. In the majority of these studies investigating hemispheric specialization in the deaf, auditory deprivation and linguistic deprivation were confounded (Conrad, 1979;Marcotte & Morere, 1990): deaf subjectsÕ lack of knowledge of the grammar and phonology of the language may explain their abnormal laterality patterns.…”

Section: Introductionmentioning

confidence: 77%

Lateralization effects during semantic and rhyme judgement tasks in deaf and hearing subjects

D'Hondt¹,

Leybaert²

2003

Brain and Language

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A visual hemifield experiment investigated hemispheric specialization among hearing children and adults and prelingually, profoundly deaf youngsters who were exposed intensively to Cued Speech (CS). Of interest was whether deaf CS users, who undergo a development of phonology and grammar of the spoken language similar to that of hearing youngsters, would display similar laterality patterns in the processing of written language. Semantic, rhyme, and visual judgement tasks were used. In the visual task no VF advantage was observed. A RVF (left hemisphere) advantage was obtained for both the deaf and the hearing subjects for the semantic task, supporting NevilleÕs claim that the acquisition of competence in the grammar of language is critical in establishing the specialization of the left hemisphere for language. For the rhyme task, however, a RVF advantage was obtained for the hearing subjects, but not for the deaf ones, suggesting that different neural resources are recruited by deaf and hearing subjects. Hearing the sounds of language may be necessary to develop left lateralised processing of rhymes.

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Section: Introductionmentioning

confidence: 77%