TY - GEN
T1 - Evaluation of Psychological Emotions During Fragrance Exposure by Chaotic Analysis of Fingertip Plethysmography
AU - Sakata, Tomofumi
AU - Watanuki, Keiichi
AU - Muramatsu, Keiichi
AU - Kaede, Kazunori
N1 - Publisher Copyright:
© 2020, Springer Nature Switzerland AG.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - Fragrance influences the psychophysiological state of a person; the volume of fingertip plethysmography is consequently affected by the aspiration of aroma. In this study, stimulation threshold at the time of aroma suction and emotional change around the discrimination threshold were evaluated by analyzing both a questionnaire and fingertip plethysmograph measurement. We built a fragrance generator to confirm the stimulus threshold, discrimination threshold, and acclimatization time of smell. Participants were asked to take a subjective evaluation of aroma intensity, comfortableness (comfort/discomfort), and aroma frequency in real time. The results confirmed the chaotic nature of the time series data of the fingertip plethysmographs. Moreover, the fingertip plethysmographs fluctuated when the participants responded that it did not smell in the subjective evaluation and when the maximum Lyapunov exponent increased, as the aroma fluctuation of the fingertip plethysmographs enlarged, corresponding to the uncomfortable values of the subjective evaluation.
AB - Fragrance influences the psychophysiological state of a person; the volume of fingertip plethysmography is consequently affected by the aspiration of aroma. In this study, stimulation threshold at the time of aroma suction and emotional change around the discrimination threshold were evaluated by analyzing both a questionnaire and fingertip plethysmograph measurement. We built a fragrance generator to confirm the stimulus threshold, discrimination threshold, and acclimatization time of smell. Participants were asked to take a subjective evaluation of aroma intensity, comfortableness (comfort/discomfort), and aroma frequency in real time. The results confirmed the chaotic nature of the time series data of the fingertip plethysmographs. Moreover, the fingertip plethysmographs fluctuated when the participants responded that it did not smell in the subjective evaluation and when the maximum Lyapunov exponent increased, as the aroma fluctuation of the fingertip plethysmographs enlarged, corresponding to the uncomfortable values of the subjective evaluation.
KW - Chaotic analysis
KW - Evaluation of psychological emotions
KW - Fingertip plethysmographs
KW - Fragrance
UR - http://www.scopus.com/inward/record.url?scp=85067289236&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067289236&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-20441-9_18
DO - 10.1007/978-3-030-20441-9_18
M3 - Conference contribution
AN - SCOPUS:85067289236
SN - 9783030204402
T3 - Advances in Intelligent Systems and Computing
SP - 167
EP - 176
BT - Advances in Affective and Pleasurable Design - Proceedings of the AHFE 2019 International Conference on Affective and Pleasurable Design
A2 - Fukuda, Shuichi
PB - Springer Verlag
T2 - AHFE International Conference on Affective and Pleasurable Design, 2019
Y2 - 24 July 2019 through 28 July 2019
ER -