Abstract
The areas of seven subregions of the corpus callosum and three subregions of the cerebellum were examined on midsagittal magnetic resonance imaging scans of 27 low-IQ autistic individuals and 17 nonautistic individuals of comparable mental age. Autistic individuals had a significantly smaller corpus callosum (most marked in the body). No significant between-group differences were found in cerebellum areas. Results demonstrate that abnormalities of the corpus callosum reported in high-functioning autistic individuals are also present in autistic individuals with mental retardation and extend previous reports showing no evidence for a selective hypoplasia of cerebellar lobules VI-VII.
Original language | English |
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Pages (from-to) | 470-474 |
Number of pages | 5 |
Journal | Journal of Neuropsychiatry and Clinical Neurosciences |
Volume | 11 |
Issue number | 4 |
Publication status | Published - Sept 1999 |