골프퍼팅에 대한 운동심상과 활동관찰시의 뇌 활성화 패턴 차이 = Differences in the brain activation pattern during motor imagery and action observation of golf putting

국문 초록 (Abstract)

본 실험의 목적은 골프퍼팅 장면에 대한 운동심상과 활동관찰시의 뇌 활성화 패턴을 분석함으로써 운동심상과 활동관찰의 작용기전 차이를 검토하는 것이다. 남자 대학생 18명이 피험자로 참여하였으며, 활동관찰, 눈뜬 심상, 그리고 눈감은 심상 집단에 각각 6명씩 무작위로 배정되었다. 실험과정에서 활동관찰집단은 모델의 퍼팅수행 장면을 관찰하였으며, 심상집단들은 눈을 감거나 뜬 상태에서 퍼팅수행 장면을 심상하였다. 피험자가 과제를 수행하는 동안 세 부위의 뇌영역(C3, Cz, C4)으로부터 뇌파를 측정하였으며, 측정된 자료로부터 뮤리듬의 억제를 계산하였다. 계산된 변수는 마지막 두 변수가 반복측정된 집단(3) × 거리(3) × 뇌영역(3)의 삼원분산분석에 의해 분석되었다. 뮤리듬의 억제는 두 심상집단에 비해 활동관찰집단에서 유의하게 억제되었다. 이러한 결과는 활동관찰이 과제의 실제수행에 관여하는 뇌영역을 운동심상보다 효과적으로 활성화시킬 수 있음을 시사한다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate differences in mechanisms of motor imagery and action observation by analyzing the brain activation pattern during motor imagery and action observation of golf putting. 18 male university students participated as subjects, and were randomly assigned to one of the three groups: action observation, motor imagery with eyes open, and motor imagery with eyes closed. During the experiment, the action observation group observed the putting performance of a model, whereas other groups performed motor imagery of golf putting with either eyes open or eyes closed. While participants performed the experimental tasks, EEG activities were measured from three brain areas, C3, Cz, and C4, from which the suppression of mu rhythm was calculated. Calculated variable was analyzed by three-way ANOVAs (3 groups x 3 distances x 3 brain areas) with repeated measures on the last two factors. The suppression of mu rhythm was suppressed significantly in the action observation group, compared to motor imagery groups. This result suggests that action observation can activate the brain areas involved in the performance of actual task more effectively than motor imagery.

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