Comprehensive Evaluation of Left Hemisphere Type I Schizencephaly

B. E. Levin, M. C. Brown, R. E. Ramsay, H. J. Landy

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


We report the neuropsychological, magnetic resonance imaging, electroencephalographic telemetry, and sodium amytal test findings of a 32- year-old, left-handed man with unilateral left hemisphere type I schizencephaly. The patient was referred for treatment of medically refractory left temporal complex partial seizures that developed at age 26 years. Sodium amytal testing revealed complete incorporation of speech and language function by the right hemisphere. Detailed neuropsychological evaluation indicated average to above-average performance on all measures of language skills, judgment and reasoning, visuospatial abilities, and memory function. This case demonstrates that extensive but lateralized neuronal migration disorders can be associated with complete reorganization and full recovery of function by the contralateral hemisphere. Furthermore, this case supports the view that the degree of recovery is greatest when compensatory mechanisms are activated antenatally.

Original languageEnglish (US)
Pages (from-to)667-669
Number of pages3
JournalArchives of neurology
Issue number6
StatePublished - Jun 1993

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology


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