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NEUROLOGY 2006;66:1444-1456
© 2006 American Academy of Neurology
Brief Communications

Perception of motor strength and stimulus magnitude are correlated in stroke patients

P. A. Taylor-Cooke, MA, R. Ricci, PhD, J. H. Baños, PhD, X. Zhou, MD, A. J. Woods, BS and M. S. Mennemeier, PhD

From the Department of Physical Medicine and Rehabilitation (P.A.T.-C., R.R., J.H.B., X.Z.), The University of Alabama at Birmingham; and Department of Neurobiology and Developmental Sciences (A.J.W., M.S.M.), The University of Arkansas for Medical Sciences, Little Rock.

Address correspondence and reprint requests to Dr. Mark Mennemeier, 510 Jack Stephens Drive, Slot 826, Little Rock, AR 72205; e-mail: msmennemeier{at}uams.edu

The authors examined whether perception of contralateral limb strength is altered and whether perception of strength correlates with perception of stimulus intensity (magnitude) in a prospective sample of patients with unilateral right (RHL: n = 13) and left (LHL: n = 6) hemisphere lesions due to stroke. Patients with RHL tended to overestimate strength and patients with LHL tended to underestimate strength; both patterns were highly correlated with altered perception of stimulus magnitude.

Additional material related to this article can be found on the Neurology Web site. Go to www.neurology.org and scroll down the Table of Contents for the May 9 issue to find the title link for this article.

Supported by NS39348 (NINDS-NIH), HD40631 (NCMRR-NIH), RR020146 (NCRR-NIH), 5T32HD007420-15 (NICHD-NIH), and The Jackson T. Stephens Spine & Neurosciences Institute.

Disclosure: The authors report no conflicts of interest.

Received June 20, 2005. Accepted in final form January 20, 2006.






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