Journal of Korea Society of Industrial Information Systems (한국산업정보학회논문지)

Korea Society of Industrial Information Systems (한국산업정보학회)
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Characteristics in HRV(heart rate variability), GSR(galvanic skin response) and skin temperature for stress estimate

스트레스 평가를 위한 심박 변이도, 전기피부반응 및 피부온도 특성

  • 조영창 (경운대학교 항공정보통신공학과) ;
  • 김민수 (경운대학교 항공정보통신공학과)
  • Received : 2015.05.27
  • Accepted : 2015.06.28
  • Published : 2015.06.30
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Abstract

Stress is one of the major causes threatening the mental and physical health of human today. In this paper, we analyzed the heart rate variability(HRV), galvanic skin response(GSR), and skin temperature data measured from the university subjects before and after the class to examine the influence on bio-signal in stress environment. Thirty subjects from university students (aged between 21 and 27 years; mean=22.31, STD=1.45) took part in this study. From the experiment results, RMSSD(p=0.033), LF peak(p=0.003), VLF(p=0.045) were statistically significant from those of the control group(p<0.05) of HRV both in time and frequency domain. We observed that mean skin conductivity after the class(mean=5.993(uS), SD=3.406) is higher than that before the class(mean=3.039(uS), SD=2.628) by 97.2% on average and the skin temperature after the class($34.835{\pm}0.305$) is slightly higher than that before the class($34.471{\pm}0.281$) by 1.055% on average. The results in this research could be used to examine the autonomic response in clinical stress related research.

오늘날 스트레스는 인간의 정신적, 신체적 건강을 위협하는 주된 요인 중의 하나이다. 본 논문에서는 대학생들에 대해 수업 전과 후에 측정한 심박변이도, 전기피부반응, 피부 온도가 스트레스 환경에서 생체 신호에 미치는 영향을 분석, 조사하였다. 본 연구에는 21세에서 27세 사이의 학생 30명이 참여하였으며, 이들의 평균 나이는 22.31세, 표준편차는 1.45세이다. 실험을 통해 시간영역과 주파수영역 모두에서 HRV의 제어 그룹에 대해 비교한 결과, 실험군에 대한 RMSSD(p=0.033), LF 첨두값(p=0.003), VLF(p=0.045)가 통계적으로 유의한 것으로 확인되었다. 평균 피부 전도도는 수업 후의 측정 결과(평균=5.993(uS), 표준편차=3.406)가 수업 전의 측정 결과(평균=3.039(uS), 표준편차=2.628)보다 평균적으로 97.2% 높게 나타났으며, 피부 온도는 수업 후의 측정 결과($34.835{\pm}0.305$)가 수업 전의 측정 결과($34.471{\pm}0.281$)보다 평균적으로 1.055% 높게 나타남을 알 수 있었다. 본 연구결과는 스트레스 관련 임상 연구에서 자율신경계의 반응을 조사하는 연구에 활용될 수 있을 것으로 사료된다.

Keywords

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