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Pars triangularis asymmetry and language dominance.
Foundas, A L; Leonard, C M; Gilmore, R L; Fennell, E B; Heilman, K M.
Afiliação
  • Foundas AL; Department of Psychiatry and Neurology, Tulane University School of Medicine, New Orleans, LA, USA.
Proc Natl Acad Sci U S A ; 93(2): 719-22, 1996 Jan 23.
Article em En | MEDLINE | ID: mdl-8570622
ABSTRACT
The pars triangular is a portion of Broca's area. The convolutions that form the inferior and caudal extent of the pars triangularis include the anterior horizontal and anterior ascending rami of the sylvian fissure, respectively. To learn if there are anatomic asymmetries of the pars triangularis, these convolutions were measured on volumetric magnetic resonance imaging scans of 11 patients who had undergone selective hemispheric anesthesia (Wada testing) to determine hemispheric speech and language lateralization. Of the 10 patients with language lateralized to the left hemisphere, 9 had a leftward asymmetry of the pars triangularis. The 1 patient with language lateralized to the right hemisphere had a significant rightward asymmetry of the pars triangularis. Our data suggest that asymmetries of the pars triangularis may be related to speech-language lateralization.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fala / Dominância Cerebral / Lobo Frontal / Idioma Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 1996 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fala / Dominância Cerebral / Lobo Frontal / Idioma Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 1996 Tipo de documento: Article País de afiliação: Estados Unidos