Girls with Turner syndrome were investigated in order to determine the anatomical differences in their brains compared with those of normal age-matched female controls, and to relate these differences to deficits in neurocognitive function with a view to understanding the abnormal brain development in Turner syndrome. During the 2-year study period, it is planned to evaluate 50 girls with Turner syndrome and 50 age-matched controls. A wide range of authentic neurocognitive tests will be applied to establish the neurocognitive profile, and brain anatomy will be studied by magnetic resonance imaging (MRI). Ten patients with Turner syndrome have been evaluated by neurocognitive testing to date, and 8 girls with Turner syndrome and 13 controls have had MRI scans performed. There is preliminary evidence of both specific and generalized processes affecting brain development and cognitive function in Turner syndrome. The evidence of a role for sex hormones in socio-behavioural and cognitive abilities in Turner syndrome is discussed.

Keywords:
Brain imaging, Cognitive function, Magnetic resonance imaging, Neurocognitive deficits, Turner syndrome
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© 1993 S. Karger AG, Basel
1993
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