Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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A Study on Correlation Between Subjective Assessment and EEG for Essential Odors

주관적 향의 선호도와 뇌파 반응과의 상관관계

  • 민병찬 (한국표준과학연구원 인간정보연구실) ;
  • 한정수 (한국과학기술원(KAIST) 전기및전자공학과) ;
  • 정순철 (건국대학교 의학공학부) ;
  • 변증남 (한국과학기술원(KAIST) 전기및전자공학과) ;
  • 김지관 (창원대학교 산업시스템공학과) ;
  • 김철중 (한국표준과학연구원 인간정보연구실)
  • Published : 2001.12.31
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Abstract

In the present study, the correlation between subjective assessment and EEG for essential odors were investigated quantitatively. EEG signals were measured from 19 electrodes according to the International 10-20 system (Fp1, Fp2, F3/4, F7/8, Fz, C3/4, Cz, P3/4, Pz, T3/4, T5/6, O1/2) from 8 healthy males subjects for four odor(Rose oil bulgarian, Lemon oil misitano, jasmin abs, Laverder oil france (KIMEX co. Ltd) conditions. The result of the subjective assessment shows the most pleasant odor for each subject. and the power spectrum of ${\alpha}/({\alpha}+{\beta})$ of EEG signals from the most pleasant odor was compared with those from the control condition, which has no odor at all. Power spectrum of ${\alpha}/({\alpha}+{\beta})$ of EEG from the most pleasant odor was increased significantly at T4, T6 compared to the control condition. This result implies that the parameter, power spectrum of ${\alpha}/({\alpha}+{\beta})$, could be an important index for signifying the levels of pleasantness for odors.

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