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Corpus callosum volume and neurocognition in autism.

The corpus callosum has recently been considered as an index of interhemispheric connectivity. This study applied a novel volumetric method to examine the size of the corpus callosum in 32 individuals with autism and 34 age-, gender- and IQ-matched controls and to investigate the relationship between this structure and cognitive measures linked to interhemispheric functioning. Participants with autism displayed reductions in total corpus callosum volume and in several of its subdivisions. Relationships were also observed between volumetric alterations and performance on several cognitive tests including the Tower of Hanoi test. These findings provide further evidence for anatomical alterations in the corpus callosum in autism, but warrant additional studies examining the relationship of this structure and specific measures of interhemispheric connectivity.

Pubmed ID: 19165587

Authors

  • Keary CJ
  • Minshew NJ
  • Bansal R
  • Goradia D
  • Fedorov S
  • Keshavan MS
  • Hardan AY

Journal

Journal of autism and developmental disorders

Publication Data

June 15, 2009

Associated Grants

  • Agency: NICHD NIH HHS, Id: HD 35469
  • Agency: NIMH NIH HHS, Id: K23 MH064027
  • Agency: NIMH NIH HHS, Id: K23 MH064027-01
  • Agency: NIMH NIH HHS, Id: K23 MH064027-02
  • Agency: NIMH NIH HHS, Id: K23 MH064027-03
  • Agency: NIMH NIH HHS, Id: K23 MH064027-04
  • Agency: NIMH NIH HHS, Id: K23 MH064027-05
  • Agency: NIMH NIH HHS, Id: K23 MH064027-06
  • Agency: NIMH NIH HHS, Id: MH 64027
  • Agency: NICHD NIH HHS, Id: P50 HD055748
  • Agency: NICHD NIH HHS, Id: U19 HD035469
  • Agency: NICHD NIH HHS, Id: U19 HD035469-06
  • Agency: NICHD NIH HHS, Id: U19 HD035469-07
  • Agency: NICHD NIH HHS, Id: U19 HD035469-08
  • Agency: NICHD NIH HHS, Id: U19 HD035469-09
  • Agency: NICHD NIH HHS, Id: U19 HD035469-10

Mesh Terms

  • Adolescent
  • Adult
  • Autistic Disorder
  • Case-Control Studies
  • Child
  • Cognition
  • Corpus Callosum
  • Female
  • Functional Laterality
  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging
  • Middle Aged
  • Neuropsychological Tests
  • Organ Size
  • Young Adult