An Experimental Study of the Bioelectrical Signals and Subjective Response in Changing from Unpleasant to Pleasant Temperatures in a Learning Environment

Title & Authors
An Experimental Study of the Bioelectrical Signals and Subjective Response in Changing from Unpleasant to Pleasant Temperatures in a Learning Environment
Im, Gwanghyun; Kim, Jinhyun; Park, Chasik; Cho, Honghyun;

Abstract
In this study, experiments using bioelectronic signals and questionnaire surveys were carried out in learning conditions when temperatures changed from low- and high-uncomfortable to comfortable. As a result, the stress factor Photoplethysmography (PPG) decreased, while the Root Mean Square of Standard Deviation (RMSSD) of PPG increased when the indoor temperature was changed from low- or high-uncomfortable to comfortable. Additionally, the absolute power of the $\small{{\alpha}}$-wave in the brain increased. According to the analysis of the association between the questionnaire and bioelectronic signals, the standard deviation of the stress factor as measured by pulse was closely related to the result of the thermal sensation questionnaire. In addition, it was found that the concentration on studying improved under comfortable temperatures when compared to uncomfortable temperatures.
Keywords
Biological electricity;Electroencephalogram;Photoplethysmography;Comfort sensation vote;Thermal sensation vote;
Language
Korean
Cited by
1.
설비공학회 분야의 최근 연구 동향 : 2015년 학회지 논문에 대한 종합적 고찰,이대영;김사량;김현정;김동선;박준석;임병찬;

설비공학논문집, 2016. vol.28. 6, pp.256-268
1.
Recent Progress in Air-Conditioning and Refrigeration Research : A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2015, Korean Journal of Air-Conditioning and Refrigeration Engineering, 2016, 28, 6, 256
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