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    Biol Psychiatry. 1992 Mar 1;31(5):491-504.

    Magnetic resonance imaging in autism: measurement of the cerebellum, pons, and fourth ventricle.

    Piven J, Nehme E, Simon J, Barta P, Pearlson G, Folstein SE.

    Source

    Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, Maryland.

    Abstract

    Magnetic resonance imaging (MRI) research has suggested that autistic individuals have hypoplasia of cerebellar lobules VI and VII, the pons, and enlargement of the fourth ventricle. Using MRI we measured the mid-sagittal area of these structures in 15 high-functioning autistic males; 15 age- and IQ-comparable male volunteers (control group I); and 15 male volunteers comparable to cases on age and parental socioeconomic status (SES) (control group II). Using ratio measures, cerebellar lobules VI-VII were found to be smaller in autistic subjects than controls in group II but not those in group I. No differences were found after multivariate analysis adjusting for mid-sagittal brain area (MSBA), age, and IQ. The size of the pons and fourth ventricle did not differ between cases and controls, although autistic subjects were noted to have a significantly larger MSBA than subjects in either control group.

    PMID:
    1581425
    [PubMed - indexed for MEDLINE]

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