它们也都缺省了皮下组织的关键部分——如进行动作协调的小脑，控制情绪的扁桃体以及控制肌肉组织的脊髓。

They are also missing essential subcortical structures, -such as the cerebellum that organizes movements, the amygdala that creates emotional states and the spinal cord that runs the musculature.

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目的研究遗传性脊髓小脑性共济失调7型（SCA7）的基因突变和临床特征。

Objective To study the gene mutation and clinical characteristic of hereditary spinocerebellar ataxia type 7 (SCA7).

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目的研究细胞凋亡在脊髓小脑性共济失调3型(SCA3)分子发病机制中的作用。

Objective to study the role of cell apoptosis in the molecular pathogenesis of spinocerebellar ataxia type 3 (SCA3).

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