Tremor and senile parkinsonism

A study of 100 Day Hospital patients showed that 26 elderly patients with mild Senile Parkinsonism and varying degrees of dementia had subclinical tremor with the same frequency as Parkinson's Disease and distinguishable by amplified recordings from those of Parkinson's Disease and Senile Tremor. A significant history of cerebro-vascular disease was obtained in one-half of these patients. The recording of tremor is shown to be of value in diagnosing Parkinsonism and in assessing response to treatment.