Speech Lateralization in Deaf Populations: Evidence for a Developmental Critical Period  

Oleh:

Marcotte, Ann C. ; Morere, Donna A.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 39 no. 1 (Jul. 1990), page 134-152.
Fulltext: 39_01_Marcotte_Morere.pdf (1.19MB)

Ketersediaan

Perpustakaan PKBB Nomor Panggil: 405/BAL/39 Non-tandon: tidak ada Tandon: 1

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Isi artikel

Cerebral lateralization for speech in right-handed normal hearing and deaf adolescents was assessed using the dual-task paradigm. Subjects with normal hearing and deafness acquired after 3 years of age displayed left hemispheric dominance for speech production, whereas both congenitally deaf and those with an early acquired deafness (onset 6-36 months) showed atypical, anomalous cerebral representation. These results suggest the presence of a developmental critical period for cerebral lateralization during which exposure to adequate environmental stimulation may be needed to activate left hemispheric dominance for speech. @ 1990 Academic Press. Inc.

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