【摘 要】
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Emotion may have an important function in complex choices, especially when subjects must choose under uncertainty and risk.We present the results of two experiments in which, emotions are induced whil
【机 构】
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School of Psychology University of Murcia Spain
【出 处】
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BIT`s 3rd Annual World Congress of NeuroTalk-2012(2012第三届国际神
论文部分内容阅读
Emotion may have an important function in complex choices, especially when subjects must choose under uncertainty and risk.We present the results of two experiments in which, emotions are induced while the subjects perform decisionmaking tasks.We employed the Iowa Gambling Task to explore the effects of experienced emotions, induced by affective pictures (pleasant, neutral and unpleasant) on the learning (trials 1 to 40) and performance phases (trials 41 to 100) of the task.Subjects were 60 women randomly assigned to one of the three emotional conditions.Autonomic responses (skin conductance and heart rate) as well as muscle facial EMG activity (corrugator supercilii) were recorded.Decisions under high ambiguity (learning phase) are influenced by the arousal of the experienced emotion, with pleasant and unpleasant pictures leading to disadvantageous choices.Decisions under low ambiguity (performance phase) are influenced by the affective valence of the experienced emotion, with pleasant emotions leading to more risky choices than both neutral and unpleasant ones.The second experiment examined the influence of incidental emotions on risky decision making for potential gains and losses, employing the Cups Task that separates risk taking as a function of decision domain (gains vs.loss).A total of 142 subjects (84 women) were randomly assigned to one of three groups (pleasant, neutral or unpleasant), and each group was exposed to 36 affective pictures of the same emotional category.In the gain domain, the unpleasant group made more conservative choices, whereas the pleasant group was excessively risk taking.These results give support to the data pointing to a tendency for pleasant emotions to lead to risky choices.
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