ataxia of extremities - unsteadiness of gait towards side of lesion
pendular reflexes - legs swing back and forth when knee jerk elicited
rebound phenomena - outstretched arm swings excessively when displaced
from damage to midline structures:
disturbance of equilibrium - manifest as unsteadiness in walking: a drunken gait which is wide based or reeling on a narrow base; sitting - truncal ataxia
eye movements:
nystagmus - in unilateral diseases, amplitude and rate increase when looking towards the diseased side; this is an inconsistent finding
ocular dysmetria - overshoot when eyes voluntarily fixate
speech:
scanning dysarthria - especially with explosive speech - an inconsistent finding
involuntary movements:
myoclonic jerks and choreiform motions if deep nuclei involved
abnormal head tilt - also in trochlear palsy, tonsillar herniation
rhythmic nodding tremor of head - side to side or 'to and fro' - titubation
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