intention tremor


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intention tremor

[in′ten·chən ‚trem·ər]
(medicine)
A clinical manifestation of certain diseases of the nervous system characterized by involuntary trembling of the limbs brought on by voluntary movements, and ceasing on rest.
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Intention tremor, parkinsonism, and generalized brain atrophy in male carriers of fragile X.
A resting tremor can indicate parkinsonism; intention tremor may indicate a cerebellar lesion.
NEUROLOGICAL DISORDERS CHARACTERISTIC SIGNS Movement Speed Location Neurological Disorders Rest tremor 4-6 Hz arms, legs Parkinson's disease Postural tremor 7-12 Hz hands Essential tremor Intention tremor 2-5 Hz arms, legs Cerebellar lesions TABLE II.