PSYCH OpenIR  > 健康与遗传心理学研究室
Alternative TitleThe Influence of Ego Depletion on Risky Preference





Other Abstract

There is no generally accepted theory concerning whether people with ego-depletion are more likely to be risky or be conservative in decision-making. Some scholars believed that people will be more risk aversion when in a state of ego-depletion,while others hold the view of risk seeking. In this study, cognitive control task was used for ego depletion and the purpose were to have a clearer understanding of ego  depletion ,the risk decision-making process when someone in a state of ego depletion and the essential influence of ego depletion on risk decision-making.

In study 1,70 college students in Beijing were recruited and randomly assigned to depletion or control conditions, completed a financial decision-making task. It was a 2 ( framing: gain or loss)X2(the state of depletion: depletion or not) mixed design. The framing is in group variables while the state of depletion is between group variables. Spatial incompatibility task were used for ego depletion and Risky-choice framing task was used for risk preference. The results showed a framing effect in the decision-making task that was not weakened by ego depletion. However, participants in the depleted (vs. control) group, regardless of framing, showed more loss aversion in the decision-making task.

To exclude the interference of cognitive load on the result of study 1,we conducted study 2. 62 college students in Beijing were recruited and the classical Risky-choice framing task was adapted. The conservative and risky options of the adapted risk decision-making task both required cognitive calculation and there's no time limitation about the decision-making. The results showed that:①The depletion group(vs. control) spent less time in the decision-making task.②In study 2,although the depletion didn't show the preference of risk aversion as study l, depletion group(vs. control) were more sensitive to risk.

The result that people in a state of will be more risk aversion in study 1 has not been repeated in study 2. Study 2 showed that heuristic system became the major part in risk decision making when people in a state of ego depletion. Combined with the results of study 1 and study 2, we concluded that ego depletion didn't directly make people to be more conservative or risky, but it did lead individuals to act more in line with their characteristics; The risk preference in a depletion state is also related to the type and situation of risk decision task.

Keyword自我损耗 框架效应 风险决策 启发式系统
Degree Name理学硕士
Degree Discipline应用心理学
Degree Grantor中国科学院大学
Place of Conferral中国科学院心理研究所
Document Type学位论文
Recommended Citation
GB/T 7714
周悦. 自我损耗对风险决策偏好的影响[D]. 中国科学院心理研究所. 中国科学院大学,2019.
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