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Effect of emotional arousal on inter-temporal decision-making: an fMRI study

J. Sohn,Hyo-Eun Kim,S. Sohn,J. Seok,Damee Choi,S. Watanuki

Published 2015 in Journal of Physiological Anthropology

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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