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KMID : 0981220180180020177
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Congnitive Behavior Therapy in Korea
2018 Volume.18 No. 2 p.177 ~ p.197
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Dichotomous Thinking Behind Mood Variability
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Hwang Seong-Hoon
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Abstract
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I explored whether and how dichotomous thinking (DT) is related to mood variability (MV). Ratings of Emotional Stimulus (RES) task was created in order to understand the connectedness between DT and MV. The high and low DT groups (each consisting of 40 subjects) were screened based on the results of the Dichotomous Thinking Index-30 Revised (DTI-30R; Hwang, 2007) from the population of 200 cyber university students. The two groups completed RES, where they were directed to read fictional scenarios containing positive, negative, or mixed emotional valence, and to rate their emotional response on the dimensions of joy and sadness. The RES was supposed to yield its results mainly in three ways: (a) preference for a single bipolar emotional dimension (i.e., joy and sadness are placed at each end of dimension) over a couple of unipolar ones (i.e., joy and sadness are separately placed to two independent dimensions); (b) distance of one emotion (e.g., joy) from the opposite one (e.g., sadness) on the sadness-joy dimension; (c) number of markings added on the unmarked sadness-joy dimension. It was predicted that DT would be related to a higher preference for bipolar scale, to a longer distance between joy and sadness, and to fewer markings. As results, the predictions turned out to be partly supported: (a) In the preference for a single bipolar scale, there was no significant difference between groups; (b) the high DT group set shorter, not longer, distance between joy and sadness than the low DT group only when rating positive emotion; (c) the high DT group made fewer divisions on sadness-joy dimension regardless of emotional valence. These findings from RES may explicate the mechanism through which DT brings MV as its consequence. In addition to its implications, several limitations and possible directions for future research were discussed.
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KEYWORD
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dichotomous thinking, mood variability, affective instability, rating of emotional stimulus
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