Dispersed activation in the left temporal cortex for speech-reading in congenitally deaf people.

AUTOR(ES)

MacSweeney, M

RESUMO

Does the lateral temporal cortex require acoustic exposure in order to become specialized for speech processing? Six hearing participants and six congenitally deaf participants, all with spoken English as their first langugage, were scanned using functional magnetic resonance imaging while performing a simple speech-reading task. Focal activation of the left lateral temporal cortex was significantly reduced in the deaf group compared with the hearing group. Activation within this region was present in individual deaf participants, but varied in location from person to person. Early acoustic experience may be required for regions within the left temporal cortex in order to develop into a coherent network with subareas devoted to specific speech analysis functions.

Documentos Relacionados

• Reading strategies for the profoundly deaf Libras users: Benefi ts of speech and lip reading for strengthening linguistic skills
• Circadian variation of left ventricular diastolic function in healthy people.
• Speech-like cerebral activity in profoundly deaf people processing signed languages: Implications for the neural basis of human language
• Health checks for elderly people.
• More food for more people.