Effect of emotional arousal on inter-temporal decision-making: an fMRI study |
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Authors: | Jin-Hun Sohn Hyo-Eun Kim Sunju Sohn Ji-Woo Seok Damee Choi Shigeki Watanuki |
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Affiliation: | .Department of Psychology, Brain Research Institute, Chungnam National University, Koong-dong 220, Daejeon, Yusung-gu 305-764 South Korea ;.School of Design, Graduate School of Design, Kyushu University, Shiobaru, Minami-ku, Fukuoka, 815-8540 Japan ;.Department of Social Welfare, Cheongju University, Cheongju-si, Chungbuk 363-764 South Korea ;.Department of Kansei Science, Kyushu University, Shiobaru, Minami-ku, Fukuoka, 815-8540 Japan |
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Abstract: | BackgroundPrevious research has shown that emotion can significantly impact decision-making in humans. The current study examined whether or not and how situationally induced emotion influences people to make inter-temporal choices.MethodsAffective pictures were used as experiment stimuli to provoke emotion, immediately followed by subjects’ performance of a delay-discounting task to measure impulsivity during functional magnetic resonance imaging.ResultsResults demonstrate a subsequent process of increased impulsive decision-making following a prior exposure to both high positive and negative arousal stimuli, compared to the experiment subjects’ experiences with neutral stimuli. Findings indicate that increased impulsive decision-making behaviors can occur with high arousal and can be characterized by decreased activities in the cognitive control regions such as prefronto-parietal regions.ConclusionsThese results suggest that ‘stabilization of high emotional arousal’ may facilitate a reduction of impulsive decision-making and implementation of longer term goals. |
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Keywords: | Emotion Arousal Impulsivity Delay-discounting task Decision-making fMRI |
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