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Int J Neurosci. 2013 Dec;123(12):866-75. doi: 10.3109/00207454.2013.813509. Epub 2013 Jul 9.

Changes in electroencephalographic activity during observation, preparation, and execution of a motor learning task.

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1
1Department of Neurorehabilitation, Graduate School of Health Science, Kio University , Nara , Japan.

Abstract

This study aimed to compare electroencephalographic (EEG) activity between high- and low-motor learning groups (n = 10 each) during observation of, preparation for, and execution of a motor learning task. The subjects performed a ball rotation task in which two balls were rotated clockwise with the right hand. Each trial started with a rest period (5 s), subjects then observed the task action on a computer screen (30 s), this was followed by another rest (5 s), preparation for performing the action (5 s), and finally action execution (30 s); five trials were performed. The number of rotations during execution and EEG activities during observation, preparation, and execution were recorded. The EEG data of the high-motor learning group were compared with those of the low-motor learning group and were analyzed using exact low-resolution electromagnetic tomography (eLORETA). The left sensorimotor and parietal areas of the high-motor learning group showed a greater decrease in the alpha-2 (10.5-12.0 Hz) and beta-2 (18.5-21.0 Hz) rhythms than those of the low-motor learning group during all three phases of the trials. The study results suggest that the decreases in the alpha-2 and beta-2 rhythms in these areas during observation, preparation, and execution are associated with motor skill improvement.

PMID:
23768018
DOI:
10.3109/00207454.2013.813509
[Indexed for MEDLINE]

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