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학습 자료 둘러보기 →The cerebellum functions as a comparator, fine-tuning motor activity. Its dysfunction manifests as cerebellar ataxia, a loss of coordination not explained by weakness or sensory loss.
Key assessment findings include gait ataxia (wide-based, unsteady gait), dysmetria (past-pointing on finger-to-nose test), and dysdiadochokinesia (impaired rapid alternating movements). Balance is severely affected, especially during tandem walking.
Do not confuse ataxia with sensory ataxia (worsened by closing eyes, positive Romberg test) or weakness. Cerebellar ataxia is present with eyes open or closed and is characterized by incoordination, not a primary loss of strength or sensation.
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