Journal
STROKE
Volume 39, Issue 6, Pages 1814-1820Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/STROKEAHA.107.508184
Keywords
stroke; action observation; mirror neurons system; rehabilitation
Categories
Funding
- Intramural NIH HHS Funding Source: Medline
- NICHD NIH HHS [K12 HD001097, 5K12HD001097, R01HD053793-01A1, R01 HD053793] Funding Source: Medline
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Background and Purpose-In healthy humans, observation of another individual performing a motor training task (action observation [AO]) facilitates, in the observer, the effects of physical training (PT) on motor memory formation. It is not known whether this facilitatory process, of potential value for neurorehabilitation, occurs after stroke. Methods-Eight chronic stroke patients completed this crossover- randomized investigation. A transcranial magnetic stimulation protocol that tests formation of motor memories was used to determine the effects of PT alone and in combination with AO in 2 different forms: congruent (PT + AO(congruent)) and incongruent (PT + AO(incongruent)) to the practiced task. Results-The magnitude of motor memory formation was larger with PT + AO(congruent) than with PT alone or PT + AO(incongruent). This effect was associated with a differential corticomotor excitability change in the muscles acting as agonist and antagonist of the trained/observed movements. Conclusions-These results indicate that congruent AO in association with physical training can enhance the effects of motor training after stroke.
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