Agenesis of the corpus callosum: genetic, developmental and functional aspects of connectivity

Nat Rev Neurosci. 2007 Apr;8(4):287-99. doi: 10.1038/nrn2107.


Agenesis of the corpus callosum (AgCC), a failure to develop the large bundle of fibres that connect the cerebral hemispheres, occurs in 1:4000 individuals. Genetics, animal models and detailed structural neuroimaging are now providing insights into the developmental and molecular bases of AgCC. Studies using neuropsychological, electroencephalogram and functional MRI approaches are examining the resulting impairments in emotional and social functioning, and have begun to explore the functional neuroanatomy underlying impaired higher-order cognition. The study of AgCC could provide insight into the integrated cerebral functioning of healthy brains, and may offer a model for understanding certain psychiatric illnesses, such as schizophrenia and autism.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Child Behavior
  • Child, Preschool
  • Corpus Callosum / growth & development*
  • Corpus Callosum / pathology*
  • Corpus Callosum / physiology
  • Developmental Disabilities / pathology*
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Mental Disorders / drug therapy
  • Mental Disorders / psychology
  • Neuropsychological Tests
  • Pregnancy