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KMID : 0981220200200010071
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Congnitive Behavior Therapy in Korea
2020 Volume.20 No. 1 p.71 ~ p.90
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Statistical Representation of Facial Emotion in Social Anxiety
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Lee Ga-Young
Baek Jong-Soo
Yang Jae-Won
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Abstract
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The current study examined the effect of social anxiety on the ensemble coding of facial expressions. A total of sixty-six undergraduate and graduate participants completed self-report measures for social anxiety and depression symptoms. Thereafter, the participants were asked to extract mean emotions from a set of eight faces. The stimuli used in the experiment were re-classified into 51 levels according to the emotional level (the most negative emotion values -25, the neutral emotion values 0, the most positive emotion values 25) after the morphing of the happy and angry facial expressions. The participants rated using Visual Analogue Scale (VAS) the mean emotions of a set of eight faces which were presented sequentially. We used a cumulative normal distribution function to analyze the relationship between physical averages and psychological averages (responses of participants). We calculated the point of subjective equality and observer parameters. Results indicated that the higher the social anxiety level, the more negatively biased the reactions when extracting the mean emotion from a set of faces. Moreover, there is a positive correlation between social anxiety symptoms and the difference between underestimation of positive emotion and of negative emotion. The results suggest that there is a tendency to underestimate positive emotion if the levels of social anxiety are higher.
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KEYWORD
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social anxiety, cognitive bias, statistical representation
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