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To determine the value of somatosensory evoked potentials (SEP) testing in evaluating sensory deficit in stroke patients, we analyzed the relationship of their findings in 100 patients. SEP waveforms were obtained over the spine and scalp in response to tibial nerve stimulation at the ankle. Interside differences of latencies (P35, N42, P53), interside amplitude ratios (N42, P53) and the correlation...
Some stroke patients show a balance disturbance. To know the nature of the balance disturbance, we measured the involuntary responses during standing, the long latency response (LLR), which is known as a kind of transcortical reflex. The subjects included 5 stroke hemiplegics with spasticity and 5 healthy control subjects. LLR is evoked by sudden toe-up perturbations around the ankle joint (8 degrees,...
Leg muscle responses to stance perturbation were studied in 5 normal subjects and 5 hemiplegic patients who suffered with cerebrovascular disorders with sustained ankle clonus and evidence of a spastic gait pattern. The subjects were examined for differences attributable to muscle tone and gait pattern. Subjects stood upright on a platform and were displaced by toe-up (upward tilt, 8 degrees) and...
The human auditory middle latency evoked responses (MLRs) and auditory brainstem responses (ABRs) were simultaneously recorded in 16 patients with senile dementia of Alzheimer's type (SDAT), 46 patients with multi-infarct dementia (MID) and 52 age-matched hospital control subjects.Comparison between the SDAT/MID and age-matched control groups indicated normal ABRs and latency of Pa component, but...
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