運動イメージ想起時における事象関連電位

概要

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This study examined action mechanisms of motor imagery on information processing by event-related potential (ERP). In the experiment, 10 male subjects performed an auditory oddball task in actual movement and motor imagery conditions. In this oddball task, 120 non-target stimuli (80%, 1000Hz) and 30 target stimuli (20%, 2000Hz) were randomly presented. In the actual movement condition, subjects responded to a target stimulus by pushing a response button. In the motor imagery (MI) condition, they imagined pushing the button to the onset of the rare target without actual movement. P300 event-related brain potential was used to assess neural activity related to cognitive process. There was no difference in the P300 latency between the conditions. However, the P300 amplitude in the actual movement was larger than that of the MI condition. These results may suggest that the actual movement and MI share the same neural information processing in the stimulus evaluation process.
大阪体育大学の論文