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Electrophysiological evidence for cortical plasticity with movement repetition

Halder, Pascal, Sterr, Annette, Brem, Silvia, Bucher, Kerstin, Kollias, Spyros and Brandeis, Daniel (2005) Electrophysiological evidence for cortical plasticity with movement repetition European Journal of Neuroscience. pp. 1-7.

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Keywords: evoked potentials, human, learning, motor cortex, neuronal plasticity The role of movement repetition and practice has been extensively studied as an aspect of motor skill learning but has rarely been investigated in its own right. As practice is considered a prerequisite for motor learning we expected that even the repetitive execution of a simple movement would rapidly induce changes in neural activations without changing performance. We used 64-channel eventrelated potential mapping to investigate these effects of movement repetition on corresponding brain activity in humans. Ten healthy right-handed young adults performed a power grip task under visual force control to ensure constant behaviour during the experimental session. The session consisted of two parts intersected by a break. For analysis each part was subdivided into two runs to control for potential attention or fatigue effects, which would be expected to disappear during the break. Microstate analysis revealed that distinct topographies and source configurations during movement preparation, movement execution and feedback integration are responsive to repetition. The observed patterns of changes differed for the three microstates, suggesting that different, repetition-sensitive neural mechanisms are involved. Moreover, this study clearly confirms that movement repetition, in the absence of skill learning, is capable of inducing changes in neural networks.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Psychology
Authors :
Halder, Pascal
Sterr, Annette
Brem, Silvia
Bucher, Kerstin
Kollias, Spyros
Brandeis, Daniel
Date : 2005
DOI : doi:10.1111
Additional Information : ª Federation of European Neuroscience Societies
Depositing User : Annette Sterr
Date Deposited : 28 Mar 2017 14:40
Last Modified : 31 Oct 2017 14:29

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