Fine force instability: a quantitative measure of neuroleptic-induced dyskinesia in the hand



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	Articles by Caligiuri, M. P.
	Articles by Lohr, J. B.

J Neuropsychiatry Clin Neurosci 1990; 2:395-398
Copyright © 1990 by American Neuropsychiatric Association

REGULAR ARTICLES

Fine force instability: a quantitative measure of neuroleptic-induced dyskinesia in the hand

MP Caligiuri and JB Lohr
Research and Psychiatry Services, V.A. Medical Center, San Diego, California 92161.

The results of a new procedure for the quantification of tardive dyskinesia (TD) in the hand are reported. Fourier analyses were made of steady-state isometric force control in 41 neuroleptic-treated patients with and without hand TD. Results indicated that spectral analysis of isometric posture represents a reliable, sensitive, and valid measure of neuroleptic-induced dyskinesia.

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