Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Immediate Effect on Mu-rhythm of Somatosensory Cortex using Visual Feedback Training in Healthy Adults

건강한 성인에서 시각적 되먹임 훈련이 감각운동겉질의 뮤-리듬에 미치는 즉각적인 효과

  • Su-Bok Kim (Department of Software Convergence, Graduate School, Soonchunhyang University ) ;
  • On-Seok Lee (Department of Medical IT Engineering, College of Medical Sciences, Soonchunhyang University)
  • 김수복 (순천향대학교 일반대학원 소프트웨어융합학과) ;
  • 이언석 (순천향대학교 의료과학대학 의료IT공학과)
  • Received : 2023.04.27
  • Accepted : 2023.07.10
  • Published : 2023.08.31
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Abstract

PURPOSE: A visual feedback method was proposed to induce brain stimulation in a stroke patient, and among them, there was a treatment using a mirror. On the other hand, mirror therapy focuses only on the functional changes in body movements, and analysis of neurophysiological mechanisms of brain activity is lacking. In addition, studies on evaluating the activity and response generated in specific brain regions during visual feedback training using mirrors are insufficient. METHODS: Fifteen healthy adults (male: 10, female: 5, Years: 23.33 ± 1.23), who were right-handed were recruited. By attaching the C3, Cz, and C4 channels in the sensorimotor cortex using an electroencephalogram, training was performed under the conditions without mirror-based visual feedback (No-condition) and with visual feedback (Tasks-condition). At this time, the immediate activity of the mu-rhythm in response to training was separated and evaluated. RESULTS: The tasks-condition of C3, Cz, and C4 channels activated the relative mu-rhythm rather than the no-condition, and all showed significant differences (p < .05). In addition, in all channels at the start time, the tasks-condition was more active than the no-condition (p < .05). The activity of the cortical response was higher in the tasks-condition than in the no-condition (p < .05). CONCLUSION: The mu-rhythm activity can be evaluated objectively when visual feedback using a mirror is applied to healthy subjects, and a basic analysis protocol is proposed.

Keywords

Acknowledgement

이 연구는 순천향대학교 교내 학술연구비지원과 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업(NO. 2021R1A6A3A13045159)및 4단계 BK21 사업에 의하여 지원되었음(NO.5199990914048).

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