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Gallagher, Anne; Beland, Renee; Lassonde, Maryse – Brain and Language, 2012
Before performing neurosurgery, an exhaustive presurgical assessment is required, usually including an investigation of language cerebral lateralization. Among the available procedures, the intracarotid amobarbital test (IAT) was formerly the most widely used. However, this procedure has many limitations: it is invasive and potentially traumatic,…
Descriptors: Epilepsy, Spectroscopy, Neurology, Receptive Language
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Corina, David P.; McBurney, Susan L. – Journal of Communication Disorders, 2001
Studies of American Sign language including functional magnetic resonance imaging of deaf signers confirms the importance of left hemisphere structures in signed language, but also the contributions of right hemisphere regions to sign language processing. A case study involving cortical stimulation mapping in a deaf signer provides evidence for…
Descriptors: Adults, American Sign Language, Brain Hemisphere Functions, Case Studies
Miezejeski, Charles M.; And Others – American Journal on Mental Retardation, 1994
Brainstem auditory evoked response latencies were studied in 80 males (13 with Down's syndrome). Latencies for waves P3 and P5 were shorter for Down's syndrome subjects, who also showed a different pattern of left versus right ear responses. Results suggest decreased lateralization and receptive and expressive language ability among people with…
Descriptors: Adults, Brain Hemisphere Functions, Children, Downs Syndrome