Facilitation of Cortical Excitability by Action Related Sentence.

, Sohn, Min Kyun; , Kim, Bong Ok; , Choi, Pil Soon; , Kim, Sung Kyum; , Lee, Hae Jin

Original Article

Journal of the Korean Academy of Rehabilitation Medicine 2010;34(2):163-167.

Sohn, Min Kyun , Kim, Bong Ok , Choi, Pil Soon , Kim, Sung Kyum , Lee, Hae Jin

Department of Rehabilitation Medicine, School of Medicine, Chungnam National University, Korea. okcps@daum.net

동작과 관련된 문장에 의한 대뇌운동피질의 활성화

손민균, 김봉옥, 최필순, 김성겸, 이혜진

충남대학교 의학전문대학원 재활의학교실

Abstract

Objective
To investigate the effect of action related visual and auditory stimuli on the motor evoked potential (MEP) of hand.
Method
Right handed fifteen healthy adults without neurological deficit were included. Visual lingual stimulation was given on the computer monitor with the sentence and auditory lingual stimulation was given 10 repetitions of the above sentence using computer speaker with eyes closed. MEPs from transcranial and transcervical magnetic stimulation were recorded on the abductor pollicis brevis of the right hand.
Results
The latency of MEPs was shortened and the amplitude of MEPs with transcranial magnetic stimulation after lingual stimulation (p＜0.05). However, the latency and amplitude of with transcervical stimulation did not show significant changes.
Conclusion
Cortical excitability was enhanced by action related visual or auditory stimuli. Exercise accompanied by visual or auditory lingual stimulation rather than simple exercise might be useful for facilitating cortical excitability. (J Korean Acad Rehab Med 2010; 34: 163-167)

Key Words: MEP, Cortical excitability, Lingual stimulation