Earth Tremors in India

Tremors of the smile.

Pathophysiology of nonparkinsonian tremors.

Patients with nonparkinsonian tremors are the second largest group treated with functional neurosurgery. We summarize the present pathophysiological knowledge of these conditions. Essential tremor (ET) may be due to oscillations within the olivocerebellar circuit. There is experimental evidence from animal models for such a mechanism, and clinical data indicate an abnormal function of the cereb...

Concurrent Parkinson tremors.

1. Concurrent resting and postural tremors of patients with idiopathic Parkinson's disease were monitored using transducers responding to angular velocity of rotation. Spectra and correlation functions were calculated for each pair of records. 2. When concurrent tremor spectra share indistinguishable fundamental frequencies, have statistically significant peaks in their coherence spectra at tho...

Quantitative Analysis of Tremors in Welders

BACKGROUND Workers chronically exposed to manganese in welding fumes may develop an extra-pyramidal syndrome with postural and action tremors. OBJECTIVES To determine the utility of tremor analysis in distinguishing tremors among workers exposed to welding fumes, patients with Idiopathic Parkinson's Disease (IPD) and Essential Tremor (ET). METHODS Retrospective study of recorded tremor in s...

Generalized tremors in grower pigs: Preliminary observations

ince the beginning of 1997, a new clinical entity has been observed in approximately 30 growing-finishing units of Québec, all within the same geographical area. The condition is characterized by generalized tremors that develop suddenly. Affected pigs are of different breeds and sexes and originate from unrelated integrated organizations. The present report describes the clinical, pathologic, ...