An epidemiological reconsideration of the Geschwind-Galaburda theory of cerebral lateralization

Arch Neurol. 1990 Jul;47(7):778-82. doi: 10.1001/archneur.1990.00530070074013.


To contribute to the Geschwind-Galaburda theory of cerebral lateralization, we examined the relationship of left-handedness to allergic disorders and stuttering, using epidemiological data of two French samples, one of which (N = 9591) is representative of the French male population between 17 and 24 years of age. Results showed a higher frequency of stuttering but not of allergic disorders in left-handers. Extreme right-handedness was observed to be significantly associated with a lower frequency of allergic disorders; response bias might explain such a relationship. Findings were confirmed after allowing for potential confounding factors, such as age and education. In both samples, stuttering and allergic disorders were significantly related.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Female
  • Functional Laterality*
  • Humans
  • Hypersensitivity / physiopathology*
  • Male
  • Stuttering / physiopathology*