Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The effect of Neurofeedback training on brain wave activity and cognitive performance in chronic stroke patients

뉴로피드백(Neurofeedback) 훈련이 만성 뇌졸중 환자의 뇌파활성도와 인지수행력에 미치는 효과

  • Lee, Young-Sin (Dept. of Physical Therapy, Graduate School of Dongshin University) ;
  • Kim, Sang-Yeob (Dept. of Physical Therapy, Gwangju Health University) ;
  • Kim, Chan-Kyu (Dept. of Physical Therapy, Gwangju Health University) ;
  • Jung, Dae-In (Dept. of Physical Therapy, Gwangju Health University) ;
  • Kim, Kyung-Yoon (Dept. of Physical Therapy, Dongshin University)
  • 이영신 (동신대학교대학원 물리치료학과) ;
  • 김상엽 (광주보건대학교 물리치료학과) ;
  • 김찬규 (광주보건대학교 물리치료학과) ;
  • 정대인 (광주보건대학교 물리치료학과) ;
  • 김경윤 (동신대학교 물리치료학과)
  • Received : 2013.02.15
  • Accepted : 2013.05.09
  • Published : 2013.05.31
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Abstract

This study was done objected to the chronic stroke patients in order to evaluate change in brain wave activity and cognitive performance when Neurofeedback training. The subjects were over 6 months ago in chronic stroke patients screened-test through the 20 patients, 10 persons in each group were randomly placed. This was carried out in 4 weeks in total, with control group(n=10) on general physical therapy and experimental group(n=10) on general physical therapy along with Neurofeedback training. The general physical therapy was applied 5 times a week, 30 minutes at once, Neurofeedback training was applied as equally as the general physical therapy, which makes 20 times in total. To learn about the effect before the training, after training, and 2 weeks after the training in electric physiological measurement method of the brain, electroencephalogram(EEG) to examine challenges by calculating the absolute spectrum power for standard EEG change(%), followed by evaluation with clinical assessment tool MMSE-K, Stroop Test, Digit Span Test. As a result of comparing the change in brain wave through EEG, after training and 2 weeks after training showed that absolute ${\alpha}$-power and absolute ${\beta}$-SMR power of experimental group have increased and absolute ${\theta}$-power decreased significantly compared to experimental group I. Moreover, the MMSE-K score in trial appraisal has increased significantly, and the error in Stroop Test and Digit Span Test has decreased significantly. such results, with the chronic stroke patient's brain wave control, Neurofeedback training was determined to improve the cognitive performance. this study suggests a new training possibility of stroke patients by identifying the training effects of Neurofeedback training that trains the brain directly with brain wave control.

본 연구는 만성 뇌졸중 환자를 대상으로 뉴로피드백(Neurofeedback) 훈련이 뇌파활성도와 인지수행력 변화에 미치는 효과를 알아보고자 하였다. 6개월 이상이 지난 만성 뇌졸중 환자들 중 사전 검사를 통해 선별된 20명을 각 군당 10명씩을 무작위 배치하였다. 대조군(n=10)은 일반 물리치료군, 실험군(n=10)은 일반 물리치료와 뉴로피드백 훈련군으로 나누어 총 4주간 실시하였다. 일반 물리치료는 1회 30분씩, 주 5회 적용하였고, 뉴로피드백 훈련은 일반 물리치료와 동일하게 적용하여 총 20회를 실시하였다. 효과를 알아보기 위해 중재 전, 중재 후, 중재가 끝난 2주 후 뇌의 전기 생리학적 측정방법인 뇌전도(EEG) 검사로 과제 시 절대 스펙트럼 파워를 산출하여, 기준뇌파에 대한 증감률(%)을 비교하였고, 인지수행력 변화는 임상적 평가도구인 MMSE-K, Stroop Test, Digit Span Test를 실시하였다. 뇌전도를 통한 뇌파 변화를 비교한 결과, 중재 후와 중재가 끝난 2주 후에서 대조군에 비해 실험군에서 절대 ${\alpha}$ 파와 절대 ${\beta}$-SMR파는 유의하게 증가되었고, 절대 ${\theta}$ 파는 유의하게 감소하였다. 또한, 임상평가에서 MMSE-K 점수는 유의하게 증가하였고, Stroop Test와 Digit Span Test에서는 오류의 수가 유의하게 감소하였다. 이상의 결과로 볼 때 뉴로피드백 훈련은 만성 뇌졸중 환자의 뇌파 조절을 통해 인지수행력을 개선시키는 효과가 있음을 확인할 수 있었고, 본 연구는 뇌파 조절을 통한 뇌를 직접 훈련하는 뉴로피드백 훈련 효과를 규명함으로서 뇌졸중 환자의 새로운 훈련가능성을 제시하고자 하였다.

Keywords

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