Investigation of bio-responses to pleasant stimuli for different sensory modalities

To investigate bio-responses to pleasant stimuli, we conducted an experiment involving gustatory, olfactory, and auditory stimuli. We measured the responses of 15 test subjects, who gave informed consent to participate. The subjects tasted a piece of chocolate, smelled the aroma of "orange swee...

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Published inTransactions of Japanese Society for Medical and Biological Engineering Vol. Annual59; no. Abstract; p. 422
Main Authors Yokoyama, Toru, Ito, Yoshitaka, Yamashita, Masaji, Kitama, Masataka, Aikawa, Takeshi
Format Journal Article
LanguageJapanese
Published Japanese Society for Medical and Biological Engineering 2021
公益社団法人 日本生体医工学会
Online AccessGet full text
ISSN1347-443X
1881-4379
DOI10.11239/jsmbe.Annual59.422

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Abstract To investigate bio-responses to pleasant stimuli, we conducted an experiment involving gustatory, olfactory, and auditory stimuli. We measured the responses of 15 test subjects, who gave informed consent to participate. The subjects tasted a piece of chocolate, smelled the aroma of "orange sweet," and listened to "koi" for gauging the gustatory, olfactory, and auditory stimuli, respectively. A sitting subject rested for 90 s before being exposed to stimuli for 90 s, after which he rested for 40 s. We continuously monitored the blood pressure, electrocardiogram, respiratory wave, and photoplethysmogram for each test subject. In the results, blood pressure increased for auditory stimuli. Likewise, heart rate and respiratory depth increased for gustatory stimuli. We analyzed the combined parameter at a specific part of the pulse wave and observed an increase against control for every stimulus.
AbstractList To investigate bio-responses to pleasant stimuli, we conducted an experiment involving gustatory, olfactory, and auditory stimuli. We measured the responses of 15 test subjects, who gave informed consent to participate. The subjects tasted a piece of chocolate, smelled the aroma of "orange sweet," and listened to "koi" for gauging the gustatory, olfactory, and auditory stimuli, respectively. A sitting subject rested for 90 s before being exposed to stimuli for 90 s, after which he rested for 40 s. We continuously monitored the blood pressure, electrocardiogram, respiratory wave, and photoplethysmogram for each test subject. In the results, blood pressure increased for auditory stimuli. Likewise, heart rate and respiratory depth increased for gustatory stimuli. We analyzed the combined parameter at a specific part of the pulse wave and observed an increase against control for every stimulus. 幾つかの感覚モダリティ刺激により喚起される快感情に伴う生体反応の特徴を調査するため、快感情を喚起する味覚・嗅覚・聴覚刺激を与えた場合の生体反応を計測し解析評価したので報告する。研究は北海道科学大学倫理委員会の承認を得て実施した。書面で同意した21~23歳の健常男性15名の協力を得て実験を行った。快感情喚起の味覚刺激には「生チョコレート」を1粒摂取させること、嗅覚刺激はアロマオイル「オレンジスイート」を試香紙に滴下し、鼻下6cmに設置して嗅がせることとした。また、聴覚刺激としては、10名による事前調査で快感情スコアの最も高い楽曲「恋」をステレオで聴かせることとした。実験手順として、座位安静の被験者に対して前安静90秒の後、各刺激を90秒与え、後安静を40秒取った後、刺激中に喚起された感情につき質問紙に答えさせた。対照を含め、各刺激に対応したセッション中の生体反応を計測し、解析評価した。計測生理量は心電図、連続血圧、サーミスタ呼吸波、指尖光電脈波である。各刺激に対する質問紙結果は、対照に対して全ての刺激で快スコアが高く有意であった。生体反応としては、収縮期・拡張期血圧、脈圧ともに音刺激だけが有意に高くなった。心拍率および呼吸波振幅では味刺激のみが有意に高かった。脈波に違いはなかった。動脈波成分を用いた生理パラメータを試したところ、対照刺激に対して全ての感覚刺激で有意に高くなった。
To investigate bio-responses to pleasant stimuli, we conducted an experiment involving gustatory, olfactory, and auditory stimuli. We measured the responses of 15 test subjects, who gave informed consent to participate. The subjects tasted a piece of chocolate, smelled the aroma of "orange sweet," and listened to "koi" for gauging the gustatory, olfactory, and auditory stimuli, respectively. A sitting subject rested for 90 s before being exposed to stimuli for 90 s, after which he rested for 40 s. We continuously monitored the blood pressure, electrocardiogram, respiratory wave, and photoplethysmogram for each test subject. In the results, blood pressure increased for auditory stimuli. Likewise, heart rate and respiratory depth increased for gustatory stimuli. We analyzed the combined parameter at a specific part of the pulse wave and observed an increase against control for every stimulus.
Author Aikawa, Takeshi
Kitama, Masataka
Ito, Yoshitaka
Yamashita, Masaji
Yokoyama, Toru
Author_FL 相川 武司
伊藤 佳卓
横山 徹
北間 正崇
山下 政司
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Title Investigation of bio-responses to pleasant stimuli for different sensory modalities
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