Learning-related changes of β-activity in motor areas
نویسندگان
چکیده
Motor control is accompanied by activity in specialized areas with a continuous adjustment of the flow of information. We studied interactions between hemispheres during the learning of a bimanual polyrhythmic movements during which the left and right fingers moved at a fixed frequency ratio. In the course of learning performance improved as revealed by an increased frequency locking. The improvement was primarily achieved through an adjusted timing of the slow finger. Accompanying brain activity was localized using synthetic aperture magnetometry of whole-head MEG that revealed significant changes in bilateral motor areas and cerebellum. As expected, the adapted motor output was reflected in the overall timing of and in motor areas. In particular in motor areas contralateral to the adapted finger the β-modulation was significantly tightened.
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