Dissociations of cerebral cortex, subcortical and cerebral white matter volumes in autistic boys

作者：Martha R. Herbert, David A. Ziegler, C. Deutsch, Liam M. O’Brien, Nicholas Lange, Anna I. Bakardjiev, James Hodgson, Kristen T. Adrien, Shelley Steele, Nikos Makris, D. Kennedy, Gordon J. Harris, V.S. Caviness · 发表于：Brain · 年份：2003 · DOI：10.1093/brain/awg110 · 被引用次数：499 · 研究领域：Autism Spectrum Disorder Research、Attention Deficit Hyperactivity Disorder、Functional Brain Connectivity Studies

High-functioning autistic and normal school-age boys were compared using a whole-brain morphometric profile that includes both total brain volume and volumes of all major brain regions. We performed MRI-based morphometric analysis on the brains of 17 autistic and 15 control subjects, all male with normal intelligence, aged 7-11 years. Clinical neuroradiologists judged the brains of all subjects to be clinically normal. The entire brain was segmented into cerebrum, cerebellum, brainstem and ventricles. The cerebrum was subdivided into cerebral cortex, cerebral white matter, hippocampus-amygdala, caudate nucleus, globus pallidus plus putamen, and diencephalon (thalamus plus ventral diencephalon). Volumes were derived for each region and compared between groups both before and after adjustment for variation in total brain volume. Factor analysis was then used to group brain regions based on their intercorrelations. Volumes were significantly different between groups overall; and diencephalon, cerebral white matter, cerebellum and globus pallidus-putamen were significantly larger in the autistic group. Brain volumes were not significantly different overall after adjustment for total brain size, but this analysis approached significance and effect sizes and univariate comparisons remained notable for three regions, although not all in the same direction: cerebral white matter showed a trend towards being disproportionately larger in autistic boys, while cerebral cortex and hippoca...