• Journal of KIISE
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• v.44 no.11
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• pp.1149-1155
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• 2017

Recently, with the development of communication technology, it has become possible to collect various sensor data that indicate the environmental stimuli within a space. In this paper, we propose a group emotion prediction system using a modular Bayesian network that was designed considering the psychological impact of environmental stimuli. A Bayesian network can compensate for the uncertain and incomplete characteristics of the sensor data by the probabilistic consideration of the evidence for reasoning. Also, modularizing the Bayesian network has enabled flexible response and efficient reasoning of environmental stimulus fluctuations within the space. To verify the performance of the system, we predict public emotion based on the brightness, volume, temperature, humidity, color temperature, sound, smell, and group emotion data collected in a kindergarten. Experimental results show that the accuracy of the proposed method is 85% greater than that of other classification methods. Using quantitative and qualitative analyses, we explore the possibilities and limitations of probabilistic methodology for predicting group emotion.

• Journal of the Ergonomics Society of Korea
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• v.30 no.6
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• pp.705-713
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• 2011

Objective: The aim of this study is to compare results of emotion recognition by several algorithms which classify three different emotional states(happiness, neutral, and surprise) using physiological features. Background: Recent emotion recognition studies have tried to detect human emotion by using physiological signals. It is important for emotion recognition to apply on human-computer interaction system for emotion detection. Method: 217 students participated in this experiment. While three kinds of emotional stimuli were presented to participants, ANS responses(EDA, SKT, ECG, RESP, and PPG) as physiological signals were measured in twice first one for 60 seconds as the baseline and 60 to 90 seconds during emotional states. The obtained signals from the session of the baseline and of the emotional states were equally analyzed for 30 seconds. Participants rated their own feelings to emotional stimuli on emotional assessment scale after presentation of emotional stimuli. The emotion classification was analyzed by Linear Discriminant Analysis(LDA, SPSS 15.0), Support Vector Machine (SVM), and Multilayer perceptron(MLP) using difference value which subtracts baseline from emotional state. Results: The emotional stimuli had 96% validity and 5.8 point efficiency on average. There were significant differences of ANS responses among three emotions by statistical analysis. The result of LDA showed that an accuracy of classification in three different emotions was 83.4%. And an accuracy of three emotions classification by SVM was 75.5% and 55.6% by MLP. Conclusion: This study confirmed that the three emotions can be better classified by LDA using various physiological features than SVM and MLP. Further study may need to get this result to get more stability and reliability, as comparing with the accuracy of emotions classification by using other algorithms. Application: This could help get better chances to recognize various human emotions by using physiological signals as well as be applied on human-computer interaction system for recognizing human emotions.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.313-321
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• 2019

The purpose of this study was to examine music-color association response(MCAR) of people with visual impairment through music-emotion scale and music-color scale. The study was conducted on 60 participants(30 congenital/ 30 adventitious) who are using services of two welfare centers at S and B cities. For this, four basic emotions (happiness, sadness, anger, and fear) mediated by music were selected, and MCAR to emotion-inducing music were analyzed through self-report method. As a result, first, there were found contrasts in MCAR between happiness and sadness according to type of emotion, however, similar in anger and fear. Second, in MCAR among three variables of the music-emotion scale(valence, arousal and intensity), valence was congruent with MCAR according to type of emotion, arousal marked high scores in negative emotions, and scores of intensity in happiness and sadness were higher than those in anger and fear. Third, there were no significant differences between two groups of people with congenital and adventitious visual impairments. It is meaningful that this study showed the MCAR can be mediated by music through investigating those of people with visual impairment.

• Korean Journal of Child Studies
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• v.31 no.6
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• pp.15-34
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• 2010

The present study examines the sex differences in 5-year-old preschoolers' aggression according to the type of aggression (overt, relational) and the effect of components of social information processing (SIP : interpretation, goal clarification, response generation, response evaluation) and emotional factors (emotionality, emotional knowledge, emotion regulation) on their aggression. The subjects were 112 5-year-olds (56 boys, 56 girls) and their 11 teachers recruited from 9 day-care centers in Seoul and Kyung-Ki province. Each child's SIP and emotional knowledge were individually assessed with pictorial tasks and teachers reported on children's aggression, emotionality, and emotion regulation by questionnaires. Results indicated that there was a significant sex difference only in the preschoolers' overt aggression. Overtly aggressive response generation in SIP was the strongest predictor of preschoolers' overt aggression while anger of negative emotionality in emotional factors was the strongest predictor of preschoolers' relational aggression.

• Science of Emotion and Sensibility
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• v.7 no.4
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• pp.51-56
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• 2004

This study was to estimate human response to different color light stimulation by measuring physiological parameters of human behavior, For both stimulations we used color lights with 6 color filters such as red, yellow, green, blue, violet, and white. The experiment was performed in a soundproof chamber. 30 young male and female subjects participated in the experiment, For physiological parameters, we measured electroencephalogram (EEG), electr ocardiogram (ECG). The result of EEG analysis showed that the relative power of $\alpha$ wave ratio increased in blue and green, In case of HRV spectrum analysis, HF/LF ratio increased in green and blue. From these results, we knew that the physical response was affected by color environment and it might be an indicator in the design of a color environment.

• Science of Emotion and Sensibility
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• v.11 no.3
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• pp.375-385
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• 2008

This study intended to grasp image association on human's product and cognition response characteristic, and analyze their correlation with product preference. For this, photos of mobile phones and proposal-type products were selected for experiment stimuli, and an experiment expressing associated word and an experiment evaluating preference of each product's photo were made. With the experiments, two results were derived. First, in linguistic cognition response on product with use experience, application of emotional expression increased as the level of preference increased by mixing expressions of metaphor languages and emotional image. Second, non-use experience of product induces response corresponding to understanding on the object of cognition only perceptually and considering similarities with general experience information.

• The Korean Journal of Health Service Management
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• v.10 no.1
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• pp.93-104
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• 2016

Objectives : The purpose of this study was to identify the determinants of the long-term influence of violence on hospital nurses. Methods : Three-hundred hospital nurses were recruited in B city, South Korea. They were asked to complete a questionnaire, and 282 data- sets were included in the multiple regression analysis. Results : Subjects experienced more episodes of verbal violence than that of physical threats or physical violence. Assailants tended to be patients and their caretakers rather than internal customers. Nurses who had religion, worked in a surgical ward, and a 3-6 year career perceived a high level of violent experiences compared to their counterparts. The determinants of the long-term influence of violence were physical violence (t=-2.705, p=.007), emotion-focused coping (t=3.049, p=.003), and emotional response (t=3.611, p<.001). The model was statistically significant explaining 13.0% of the variance (F=14.981, p<.001). Conclusions : Nurse managers should help nurses who are victims of hospital violence by teaching them not to depend on emotion-focused coping and by alleviating their emotional response to violence.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.3
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• pp.179-190
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• 2010

With science and technology getting more and more advanced, the scope of digital product is expanding and the new products continuously are introduced on the market. On the basis of consumers' attachment to products, we investigated the consumers' behaviors towards the product when a digital product is extended. As a result of an empirical analysis, it turned out that a consumer tended to have higher trust and a positive emotion about relevant goods if he or she had a strong attachment to digital products. However, even though one had a strong attachment to digital products, the emotion about the corresponding brands did not necessarily appeared to be positive. In the event that a brand of digital products was extended to other new products, only the trust in the brand exerted significant influence on the consumers' behaviors towards the extended products. Finally, this study suggests some theoretical and managerial implications for effective strategies in response to customers' attachment to digital product.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.31-34
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• 2007

본 연구에서는 동일한 이미지에서 유도되는 감성적 반응이 색채의 변화에 영향을 받는가에 대하여 살펴보았다. 특히, 이미지의 어의(semantic) 내용에 전형적으로 연상되는 색채와 상반되는 색(보색)이 색조로 적용될 경우, 이미지에 대한 감성적 반응에 변화가 나타나는가에 중점을 두어 진행하였다. 이를 위해 기쁨(Pleasure)과 각성(Arousal)으로 이루어진 감성 축의 각 사분면에 해당하는 감성 이미지들을 International Affective Picture System(IAPS)에서 5장씩 추출하여 이 미지 자극으로 활용하였다. 선택된 이미지는 내용과 전형적으로 연상되는 색, 보색, 그리고 무채색 톤으로 실험에 사용하였으며 각 이미지에 대한 기쁨과 각성에 대한 감성적 반응은 Self Assessment Manikin(SAM)을 활용하여 측정하였다. 실험 결과 이미지의 내용에서 전형적으로 연상되는 색채의 보색이 이미지의 색조로 적용될 경우 감성적 반응이 소극적으로 나타나는 결과가 관찰되었다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.11a
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• pp.127-133
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• 2001

본 연구는 향에 대한 연령별 감성 구조를 밝히고, 향 감성에 따른 자율신경계 반응을 밝히려는 것이다. 실험 참여자는 연령별(10대, 20대, 40대)로 24명씩, 총 72명이고 자극향은 cederwood, grapegruit, teebaum, peppermint, rose 향을 사용하였다. 향이 제시되는 동안 혈류량, 피부온도, 피부전기반응, 심전도 반응을 측정하였고, 향에 대한 주관적 감성을 측정하였다. 향에 의한 심리적 감성 구조는 심미성, 강도, 자연성, 개성성, 낭만성의 다섯 요인이 확인되었고, 연령별로 차이가 나타나지 않았다. 향 선호도를 예측하는 감성요인은 연령별로 차이가 났다. 감성적으로 "나쁜"향은 "좋은"향보다 교감신경계 활동에 의한 자율신경계 반응이 더 크게 일어났다.