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논문 상세정보

한국심리학회지: 인지 및 생물 , 2016년, pp.389 - 407   http://dx.doi.org/10.22172/cogbio.2016.28.3.001
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

집단 얼굴표정에 대한 정서판단의 반응특성 분석
Analysis of Response Characteristics in the Judgment of Emotion for a Group of Emotional Faces

김세원  신현정  김비아  이동훈 
  • 초록

    Facial emotion is an important social cue for inferring emotional states of other people. Psychological research using facial emotions has focused on the perception of individual emotional faces. However, in the ordinary life we may infer a group level emotion from multiple faces in a group, but little has been known about what kinds of factors influence this process. In the current study, we investigate the response characteristics of the group emotion judgment for a group of emotional faces which are composed of individual faces in different emotional categories with different ratios. The group facial emotion stimuli are composed of 1) neutral and happy faces, 2) neutral and sad faces, and 3) sad and happy faces in the 8:0, 7:1, 6:2, 5:3, 4:4, 3:5, 2:6, 1:7, 0:8 ratios. By this way, the level of emotional intensity of the group is manipulated into 9 steps. Participants in each condition performed a two alternative forced choice task by judging the overall emotion of a group facial stimulus into one of two response categories (e.g., Neutral-Happy). Analysis of response times for the judgment of the group emotion showed that the response time for judging the overall emotion was slow down as faces in the two different emotion categories mixed together with a similar ratio. The response ratio data were analyzed by a nonlinear data fitting procedure using a psychometric function, and the point of subjective equality (PSE) and the precision of each participant in each condition were estimated. In results, the mean PSE in the Sad-Happy condition was almost same as a hypothetical mean (0.5) and the precision was high. On the contrary, the mean PSE of the happy response in the Neutral-Happy condition was lower than 0.5 but the mean PSE of the sad response in the Neutral-Sad condition was higher than 0.5. Moreover, participants' PSE of the happy response was negatively correlated with participants' positive emotion levels as well as happiness scores, whereas participants' PSEs of the sad response were positively correlated with participants' happiness scores. These results imply that the judgment of emotion for a group of faces is influenced by bottom-up factors such as how the group is comprised of what kinds of emotional faces, and by top-down factors such as observers' emotional states and traits.


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