Journal
JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
Volume 43, Issue 3, Pages 311-322Publisher
JOURNAL REHAB RES & DEV
DOI: 10.1682/JRRD.2005.01.0013
Keywords
coordination; dynamic dominance; handedness; hemiplegia; ipsilesional deficits; lateralization; motor control; motor learning; rehabilitation; stroke
Categories
Funding
- NICHD NIH HHS [R01HD39311] Funding Source: Medline
- NINDS NIH HHS [F32-NS-46239] Funding Source: Medline
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Recent findings on motor lateralization have revealed consistent differences in the control strategies of the dominant and nondominant hemisphere/limb systems that could have implications for hemiplegic stroke patients. Studies in stroke patients have demonstrated deficiencies in the ipsilesional ann that reflect these distinctions; patients with right-hemisphere damage tend to show deficits in positional accuracy, and patients with left-hemisphere damage show deficits in trajectory control. Such deficits have been shown to impede functional performance; yet patients with severe dominant-side herniplegia must often use the nondominant arm as the primary manipulator for activities of daily living. Nevertheless, the nondominant arm may not spontaneously become efficient as a dominant manipulator, as indicated by the persistence of deficits in chronic stroke patients. More research is necessary to determine whether motor therapy can facilitate a more effective transition of this arm from a nondominant to a dominant controller.
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