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Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study

BACKGROUND: Although emotion-specific autonomic responses based on the discrete theory of emotion have been widely studied, studies on the reliability of physiological responses to emotional stimuli are limited. In this study, we aimed to assess the reliability of physiological changes induced by th...

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Autores principales: Jang, Eun-Hye, Byun, Sangwon, Park, Mi-Sook, Sohn, Jin-Hun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6883530/
https://www.ncbi.nlm.nih.gov/pubmed/31779708
http://dx.doi.org/10.1186/s40101-019-0209-y
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author Jang, Eun-Hye
Byun, Sangwon
Park, Mi-Sook
Sohn, Jin-Hun
author_facet Jang, Eun-Hye
Byun, Sangwon
Park, Mi-Sook
Sohn, Jin-Hun
author_sort Jang, Eun-Hye
collection PubMed
description BACKGROUND: Although emotion-specific autonomic responses based on the discrete theory of emotion have been widely studied, studies on the reliability of physiological responses to emotional stimuli are limited. In this study, we aimed to assess the reliability of physiological changes induced by the six basic emotions (happiness, sadness, anger, fear, disgust, and surprise) that were measured during 10 weekly repeated experiments. METHODS: Twelve college students participated, and in each experiment, physiological signals were collected before and while participants were watching emotion-provoking film clips. Additionally, the participants self-evaluated the emotions that they experienced during the film presentation at the end of each emotional stimulus. To avoid adaptation of participants to identical stimuli during repeated measurements, we used 10 different film clips for each emotion, and thus a total of 60 film clips over 10 weeks were used. Physiological features, such as skin conductance level (SCL), fingertip temperature (FT), heart rate (HR), and blood volume pulse (BVP), were extracted from the physiological signals. Two reliability indices, Cronbach’s alpha and intraclass correlation coefficient, were calculated from the physiological features to assess internal consistency and interrater reliability, respectively. RESULTS: We found that SCL, HR, and BVP measured during the emotion-provoking phase over the 10 weekly sessions were more reliable than those assessed at baseline. Furthermore, SCL, HR, and BVP from the emotion-provoking phase exhibited excellent internal consistency and interrater reliability. CONCLUSIONS: Our findings suggest that these features can be used as reliable physiological indices in emotion studies. The results also support the significance of physiological signals as meaningful indicators for emotion recognition in HCI (human computer interface) area.
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spelling pubmed-68835302019-12-03 Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study Jang, Eun-Hye Byun, Sangwon Park, Mi-Sook Sohn, Jin-Hun J Physiol Anthropol Original Article BACKGROUND: Although emotion-specific autonomic responses based on the discrete theory of emotion have been widely studied, studies on the reliability of physiological responses to emotional stimuli are limited. In this study, we aimed to assess the reliability of physiological changes induced by the six basic emotions (happiness, sadness, anger, fear, disgust, and surprise) that were measured during 10 weekly repeated experiments. METHODS: Twelve college students participated, and in each experiment, physiological signals were collected before and while participants were watching emotion-provoking film clips. Additionally, the participants self-evaluated the emotions that they experienced during the film presentation at the end of each emotional stimulus. To avoid adaptation of participants to identical stimuli during repeated measurements, we used 10 different film clips for each emotion, and thus a total of 60 film clips over 10 weeks were used. Physiological features, such as skin conductance level (SCL), fingertip temperature (FT), heart rate (HR), and blood volume pulse (BVP), were extracted from the physiological signals. Two reliability indices, Cronbach’s alpha and intraclass correlation coefficient, were calculated from the physiological features to assess internal consistency and interrater reliability, respectively. RESULTS: We found that SCL, HR, and BVP measured during the emotion-provoking phase over the 10 weekly sessions were more reliable than those assessed at baseline. Furthermore, SCL, HR, and BVP from the emotion-provoking phase exhibited excellent internal consistency and interrater reliability. CONCLUSIONS: Our findings suggest that these features can be used as reliable physiological indices in emotion studies. The results also support the significance of physiological signals as meaningful indicators for emotion recognition in HCI (human computer interface) area. BioMed Central 2019-11-28 /pmc/articles/PMC6883530/ /pubmed/31779708 http://dx.doi.org/10.1186/s40101-019-0209-y Text en © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Original Article
Jang, Eun-Hye
Byun, Sangwon
Park, Mi-Sook
Sohn, Jin-Hun
Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title_full Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title_fullStr Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title_full_unstemmed Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title_short Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study
title_sort reliability of physiological responses induced by basic emotions: a pilot study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6883530/
https://www.ncbi.nlm.nih.gov/pubmed/31779708
http://dx.doi.org/10.1186/s40101-019-0209-y
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