Neuropsychological findings from older premutation carrier males and their noncarrier siblings from families with fragile X syndrome.

Abstract excerpt

OBJECTIVE: Carriers of the FMR1 premutation allele are at a significantly increased risk for a late-onset neurodegenerative disorder, fragile X-associated tremor/ataxia syndrome (FXTAS). The primary features of FXTAS are late-onset intention tremor and gait ataxia. Previous reports have shown global deficits in neuropsychological measures among males with FXTAS, particularly those related to executive...

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