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Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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GSR, HRV and EEG Analysis of Stress caused by Horror Image and Noise Stimulation

공포영상 및 소음자극에 의한 스트레스의 전기피부반응, 심박변이도 및 뇌파 해석

  • Kim, Min Soo (Dept. of Aviation Information & Communication Engineering, Kyungwoon University) ;
  • Cho, Young Chang (Dept. of Aviation Information & Communication Engineering, Kyungwoon University)
  • Received : 2017.11.23
  • Accepted : 2017.12.21
  • Published : 2017.12.31
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Abstract

Stress at work has become a serious problem affecting many people of different professions, life situations, and age groups. Stress management should start far before the stress start causing illnesses. In this study, studies were conducted to evaluate stress by measuring the Galvanic skin Response(GRS), Electrocardiograph(ECG), and Electroencephalogram(EEG) generated during images and noise stimuli. The GRS amplitude showed that the stress situation was 27.9 % higher than the baseline. And after the stimulus period, the response time of baseline was longer than 71.6 % than the stress situation. The stress response characteristics of the HRV showed that the rate of change in RMSSD was 16.4 %, and the rate of change of the HF Power was 29.7 %. EEG showed that the frequency band was gradually changed to the ${\theta}$ wave band during stress stimulation. We will be able to utilize image stimuli and noise stimuli as an objective indicator of stress and correlation.

직장에서의 스트레스는 많은 직업, 생활환경 및 연령대의 사람들에게 영향을 끼치는 심각한 문제가 되었다. 스트레스 관리는 스트레스가 질병을 일으키기 시작하기 훨씬 전에 시작해야 한다. 본 연구에서는 영상 및 소음 자극 시 발생하는 전기피부반응도, 심전도 및 뇌파를 측정하여 스트레스를 평가하는 연구를 수행하였다. GRS 진폭은 스트레스 상황이 안정 상태(baseline)보다 27.9% 높게 나타났다. 그리고 자극 후 baseline의 응답시간은 스트레스 상황보다 71.6% 이상 시간이 더 길었다. 심박변이도에서 스트레스 응답 특성은 RMSSD의 변화율이 16.4% 차이가 났으며, HF power의 변화율은 29.7% 차이를 보였다. 뇌파는 스트레스 자극 시 주파수 대역이 ${\theta}$파 대역으로 점점 변함을 알 수 있었다. 우리는 영상자극 및 소음자극이 스트레스와 상관관계를 파악함으로써 객관적지표로 활용 가능할 것이다.

Keywords

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