背景脆性X相关震颤／共济失调综合征（fragileX-associatedtremor/ataxiasyndrome，FXTAS）是一种以意向性震颤和／或小脑性共济失调为主要特征的神经退行性疾病。
Background Fragile X-associated tremor-ataxia syndrome ( FXTAS ) is a neurodegenerative disease characterized by progressive cerebellar ataxia and intention tremor .
意向性震颤