睡眠剥夺对风险决策的影响机制探讨

许多行业的决策者必须在睡眠不足的状态下做出选择与判断。睡眠剥夺是睡眠不足的实验室模型, 被证明能显著影响风险决策, 但内在机制不明。基于前人研究基础提出假设模型, 即睡眠剥夺通过影响个体的反馈加工、风险感知、抑制控制、决策理性, 进而影响风险决策。拟通过实验室研究与现场研究, 采用简单赌博任务、概率折扣任务、双选择Oddball任务等研究范式, 对比睡眠剥夺前后被试在执行上述实验任务时的行为差异, 同时比较执行控制网络、奖赏网络等脑功能网络连接强度, 以及任务诱发的FRN等脑电成分在睡眠剥夺前后的变化, 进而论证上述反应被试反馈加工等心理过程的行为-脑电-脑成像指标的变化与睡眠剥夺后被试风险决策变化的关系。研究结果将科学地解释睡眠剥夺影响风险决策的内在机制, 为进一步探讨如何规避睡眠不足导致的决策失误提供理论与实证依据。

The effect mechanism of sleep deprivation on risky decision making

In many industries, it is possible and sometimes inevitable for decision makers to make choices and decisions under the state of mental fatigue due to insufficient sleep. Sleep deprivation, as the laboratory model of insufficient sleep, has been proved to have significant influence on risky decision-making, while the internal mechanism remains unclear. A hypothetical model was suggested based previous studies that that the feedback processing, risk perception, inhibition control, and priority of heuristic system could mediate the influence of sleep deprivation on risky decision-making. Using laboratory study and field study, the current study planed to adopt Simple gambling task, Adult decision-making competence scale, Probability discounting task, two choice oddball paradigm, and other tasks and measurements, and compare participants’ performance in these tasks before and after sleep deprivation. Meanwhile, the connections between executive control network and reward network were compared, and the changes of task-induced FRN and other EEG components were compared as well before and after sleep deprivation. The results might present scientific explanations about how sleep deprivation influences risky decision-making, and provide theoretical basis for further exploration to avoid errors in decision-making due to insufficient sleep.