Anatomical correlates of normal and impaired language in a set of dizygotic twins

Elena Plante, Linda Swisher, Rebecca Vance

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


This report presents findings for a set of dizygotic twins at age 4 years 9 months. The male was diagnosed as specifically language impaired. For both children, the left-right perisylvian configuration was atypical. Only the male's configuration was symmetrical, a finding in line with autopsy data reported for subjects with "developmental dyslexia" who also may have had a form of language impairment. In addition, the male had an atypical (L > R) configuration of the cerebral hemispheres, a finding not seen in his twin, or in a series of volunteers without a history of developmental language impairment. The in utero effects of gonadal hormones that may account for these findings are discussed.

Original languageEnglish (US)
Pages (from-to)643-655
Number of pages13
JournalBrain and Language
Issue number4
StatePublished - Nov 1989

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing


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