시열반응과제의 운동학습이 대뇌피질 활성화의 변화에 미치는 영향 (Changes of Cortical Activation Pattern Induced by Motor Learning with Serial Reaction Time Task)

서지정보

· 발행기관 : 대한물리치료학회
· 수록지 정보 : 대한물리치료학회지 / 21권 / 1호 / 65 ~ 72페이지
· 저자명 : 권용현, 김중선, 장종성

초록

Purpose: Numerous investigators demonstrated that adaptative changes were induced by motor skill acquisition in the
central nervous system. We investigated the changes of neuroelectric potential following motor learning with serial
reaction time task in young healthy subjects, using electroencephalography (EEG).
Methods: Twelve right‐handed normal volunteers were recruited, who have no history of neurological dysfunction and
were given to written the informed consent. All subjects were assigned to flex to extend the wrist joint or flex the
thumb for pressing the matched button as quickly and accurately as possible, when one of five colored lights was
displayed on computer screen (red, yellow, green, blue, white). EEG was measured, whenfive types simulations ware
presented randomly with equal probabilities of 20% in total 200 times at the pre and post test. And they were scheduled
for 30 minutes practice session during two consecutive days in the laboratory.
Results: The results showed that the reaction time at the post test was significantly reduced, compared to one of the
pre test in serial reaction time task. In EEG map analysis, the broaden bilateral activation tended to be changed to the
focused contralateral activation in the frontoparietal area.
Conclusion: These findings showed that acquisition of motor skill led to product more fast motor execution, and that
motor learning could change cortical activation pattern, from the broaden bilateral activation to the focused
contralateral activation. Thus we concluded that the adaptative change was induced by motor learning in healthy
subjects.

영어초록

Purpose: Numerous investigators demonstrated that adaptative changes were induced by motor skill acquisition in the
central nervous system. We investigated the changes of neuroelectric potential following motor learning with serial
reaction time task in young healthy subjects, using electroencephalography (EEG).
Methods: Twelve right‐handed normal volunteers were recruited, who have no history of neurological dysfunction and
were given to written the informed consent. All subjects were assigned to flex to extend the wrist joint or flex the
thumb for pressing the matched button as quickly and accurately as possible, when one of five colored lights was
displayed on computer screen (red, yellow, green, blue, white). EEG was measured, whenfive types simulations ware
presented randomly with equal probabilities of 20% in total 200 times at the pre and post test. And they were scheduled
for 30 minutes practice session during two consecutive days in the laboratory.
Results: The results showed that the reaction time at the post test was significantly reduced, compared to one of the
pre test in serial reaction time task. In EEG map analysis, the broaden bilateral activation tended to be changed to the
focused contralateral activation in the frontoparietal area.
Conclusion: These findings showed that acquisition of motor skill led to product more fast motor execution, and that
motor learning could change cortical activation pattern, from the broaden bilateral activation to the focused
contralateral activation. Thus we concluded that the adaptative change was induced by motor learning in healthy
subjects.

참고자료

· 없음