• Journal of Information Technology Applications and Management
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• 제21권4호
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• pp.203-223
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• 2014

This study proposes a novel context-aware recommender system, which is designed to recommend the items according to the customer's responses to the previously recommended item. In specific, our proposed system predicts the user's emotional state from his or her responses (such as facial expressions and movements) to the previous recommended item, and then it recommends the items that are similar to the previous one when his or her emotional state is estimated as positive. If the customer's emotional state on the previously recommended item is regarded as negative, the system recommends the items that have characteristics opposite to the previous item. Our proposed system consists of two sub modules-(1) emotion prediction module, and (2) responsive recommendation module. Emotion prediction module contains the emotion prediction model that predicts a customer's arousal level-a physiological and psychological state of being awake or reactive to stimuli-using the customer's reaction data including facial expressions and body movements, which can be measured using Microsoft's Kinect Sensor. Responsive recommendation module generates a recommendation list by using the results from the first module-emotion prediction module. If a customer shows a high level of arousal on the previously recommended item, the module recommends the items that are most similar to the previous item. Otherwise, it recommends the items that are most dissimilar to the previous one. In order to validate the performance and usefulness of the proposed recommender system, we conducted empirical validation. In total, 30 undergraduate students participated in the experiment. We used 100 trailers of Korean movies that had been released from 2009 to 2012 as the items for recommendation. For the experiment, we manually constructed Korean movie trailer DB which contains the fields such as release date, genre, director, writer, and actors. In order to check if the recommendation using customers' responses outperforms the recommendation using their demographic information, we compared them. The performance of the recommendation was measured using two metrics-satisfaction and arousal levels. Experimental results showed that the recommendation using customers' responses (i.e. our proposed system) outperformed the recommendation using their demographic information with statistical significance.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1998년도 학술발표대회 논문집 제17권 1호
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• pp.291-296
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• 1998

In the experiment carried out on 20 college students, recorded were frontal, temporal and occipital EEG, skin conductance response, skin conductance level, heart rate and respiration rate during listening to two music fragments with different affective valences and white noise administered immediately after negative visual stimulation. Analysis of physiological patterns observed during the experiment suggests that affective auditory stimulation with music is able to selectively modulate autonomic and cortical activity evoked by preceding aversive visual stimulation and to restore initial baseline levels. On other hand, physiological responses to white noise, which does not possess emotion-eliciting capabilities, evokes response typical for orienting reaction after the onset of a stimulus and is rapidly followed by habituation. Observed responses to white noise were similar to those specific to attention only and had no evidence for any emotion-related processes. Interpretation of the obtained data is considered in terms of the role of emotional and orienting significance of stimuli, dependence of effects on the background physiological activation level and time courses of attention and emotion processes. Physiological parameters are summarized with regard to their potential utility in differentiation of psychological processes induced by auditory stimuli.

• 대한인간공학회지
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• 제22권3호
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• pp.1-11
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• 2003

The objective of this research is the development of the Automatic Subjective Assessment System (ASAS). The proposed subjective assessment system is designed to evaluate human emotion and sensibility (or "gamsung" in Korean terminology) with subjective responses of volunteers about the experiment of emotion and sensibility. Once volunteers enter their subjective responses about the experiment into the developed system, the proposed system can automatically generate statistical results of human emotion and sensibility using Statistical Package for the Social Sciences (SPSS). Then, the system stores the statistical results in the database which will be open to public through internet. The proposed system will be integrated into the universal" gamsung" assessment system for evaluation of human emotion and sensibility.

• 한국의류학회지
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• 제18권3호
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• pp.395-409
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• 1994

Consumers experience various emotional responses to clothing in consumption process. These emotional responses are important in explaining consumer behavior of clothing. The Purpose of the study was to identify the types of emotion that consumers experience in the process of wearing clothes. A questionnaire consisted of 35 words expressing emotion was developed. 110 female college students were surveyed to find out consumption experience of clothing. The empirical study was conducted in two ways. One is that the subjects were asked to respond six-point unipolar scale of emotional adjectives to identify the various emotions that consumers experienced. The other is that four different wearing situations were described for the survey and then the subjects were asked to respond same questionnaire. The data surveyed for research were analyzed by factor analysis. The conclusion of empirical study was as follows. The types of emotion that consumers experienced at various situstions were: pleasure, arousal, unpleasure, aversion, dominance, sandness, security and tension.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1998년도 추계학술발표 논문집
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• pp.154-157
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• 1998

This study investigated the psychological and physiological responses to the sound of car horns produced by different. manufacturers. Ten female college students listened to the sound of the horns while their EEG responses on 6 sites were being measured, and rated each hem on psychological scales. Their EEG and psychological responses were investigated as to whether the responses were related to the loudness, sharpness, tonality, and roughness of the horns. The results indicated that the subjects felt more 'dominated' as the loudness and sharpness increased, that the subjects felt more 'pleasant' as the sharpness increased, that the subjects felt more 'dominant' as the tonality increased, and that the subjects felt more 'aroused' as the roughness increased. The physiological results showed that the fast alpha wave in the occipital lobe decreased in the relative power as the loudness, sharpness, and tonality increased, and that the delta wave in the occipital lobe increased and the slow alpha wave in the frontal lobe decreased in the relative power as the roughness increased.

• 한국의류산업학회지
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• 제20권5호
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• pp.509-519
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• 2018

This study is to examine the effects of salespeople' attributes (i.e., empathy, availability, professional appearance) on consumer cognition, emotion, and behavior. A conceptual model was developed based on stimulus-organism-response (S-O-R) theory and cognition-emotion theory. A total of 542 questionnaires were collected online and some incompletely written questionnaires were excluded. Because of the high possibility of memory distortion, only the questionnaires (n=220) written by those who visited fashion stores within one week were used for the final analysis. The results of PLS analyses demonstrated that 1) salespeople's empathy directly affected consumers' shopping emotion; 2) salespeople's availability and professional appearance indirectly affected consumer's shopping emotion through store image; 3) consumers' shopping emotion positively affected purchase intention. Theoretical and practical implications of the results are discussed in conclusion. As a result of this research, the main characteristics of the salespeople were identified in order to allow the consumers visiting the fashion store to buy the fashion products naturally and the basic directions of sales manuals for the salespeople in the fashion store were presented. It is also hoped that academic researchers will be able to use the characteristics of salespeople as the main data to understand how they affect consumers' cognitive and emotional responses and how they are connected to purchase behavior.

• 한국산학기술학회논문지
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• 제14권10호
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• pp.5003-5011
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• 2013

본 논문은 정서-주의 태스크를 수행할 때의 신경학적, 행동학적 반응이 정서조절 능력을 반영할 수 있는지를 측정하였다. 이를 위해, 건강한 성인 남녀 19명을 대상으로 3일에 걸쳐 1일 1회씩 동일 시간대에 정서-주의 상호작용이 요구되는 실험을 수행하였다. 이 실험을 통해 정서를 유발하는 비디오를 보여주기 전과 후, 정서-주의 태스크를 수행할 때의 EEG와 반응시간이 측정되었다. ERP P100과 P300 성분 간의 밀접한 상관관계가 나타났으며, P100 진폭이 높을수록 P300 잠재기가 길게 나타났다. 또한 P300 잠재기가 길수록 반응시간이 길게 나타났다. 또한, 정서-주의 태스크를 수행할 때 ERP 성분과 반응시간에 개인별 차이가 존재하였다. 정서유발을 위해 사용된 비디오 자극의 유형에 관계없이 ERP 성분의 낮은 진폭과 빠른 잠재기를 나타낸 집단이 더 빠른 반응시간을 나타내었다. 이러한 반응특성은 목표인식에 대한 성급한 반응으로 해석될 수 있으며, 낮은 정서 조절력과 관련이 있다고 할 수 있다.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2000년도 춘계 학술대회 및 국제 감성공학 심포지움 논문집 Proceeding of the 2000 Spring Conference of KOSES and International Sensibility Ergonomics Symposium
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• pp.290-300
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• 2000

One of the most important topics in attentional and emotional modulation of cardiac responses is time course of cardiac chronotropic response. The reason lies in dual innervation of heart, which leads to occurrence of several phases of cardiac response during exposure to affective stimuli, determined by the balance of sympathetic and parasympathetic influences. Cardiac chronotropic reactivity thus represents quite effective measure capable to trace the moment when attending and orienting processes (i.e., sensory intake of stimulus) prime relevant behavioral response (ile., emotion with approach or avoidance tendencies). The aim of this study was to find the time course of heart rate (HR) responses typical for negative (disgust, surprise, fear, anger) and positive (happiness, pleasant erotic) affective pictures and to identify cardiac response dissociation for emotions with different action tendencies such as "approach" (surprise, anger, happiness) and "avoidance" (fear, sadness, disgust). Forty college students participated in this study where cardiac responses to slides from IAPS intended to evoke basic emotions (surprise, fear, anger, sadness, disgust, happiness, pleasant-erotic). Inter-beat intervals of HR were analyzed on every 10 sec basis during 60 sec long exposure to affective visual stimuli. Obtained results demonstrated that differentiation was observed at the very first 10s of exposure (anger-fear, surprise-sad, surprise-erotic, surprise-happiness paris), reaching the peak of dissociation at 30s (same pairs plus surprise-disgust and surprise-fear) and was still effective for some pairs (surprise-erotic, surprise-sad) even at 50s and 60s. discussed are potential cardiac autonomic mechanisms underlying attention and emotion processes evoked by affective stimulation and theoretical considerations implicated to understand the role of differential cardiac reactivity in the behavioral context (e.g., approach-avoidance tendencies, orienting-defense responses).

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1999년도 춘계학술발표논문집 논문집
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• pp.17-23
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• 1999

• 감성과학
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• 제10권2호
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• pp.263-271
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• 2007

최근 연구들의 개관에서 긍정정서는 스트레스의 대항에 도움을 주는 완충제 역할을 한다고 알려져 있다. 특히, 유머는 인간만이 이해하고 즐길 수 있는 정서로, 인간의 심리, 사회, 신체적 기능을 포함한 많은 면에서 기초적인 역할을 담당한다. 본 연구에서는 동영상 자극에 의해 유발된 유머 및 기쁨 정서에 따른 자율신경계 반응의 차이를 밝히고자 하였다. 47명의 남녀 초등학생을 대상으로 각 정서를 유발하는 2분 길이의 동영상 자극이 제시되는 동안, 자율신경계 반응을 측정하고 심리적인 평가를 수행하도록 하였다. 심리반응 결과, 유머자극은 95.7%의 적합성과 $3.81{\pm}1.01$의 효과성(5점 만점)을, 기쁨자극은 89.3%의 적합성과 $3.15{\pm}1.17$의 효과성을 가지는 것으로 나타났다. 자율신경계 반응 결과, 두 정서 모두 안정상태에 비하여 유의하게 증가하였고, 특히 유머자극은 기쁨자극에 비하여 피부전도반응 수(NSCR), 심박률(HR), 심박률 분산의 저주파성분(LF)에서 유의하게 큰 증가를 보였다.