得失情境下不同水平守门员的风险偏好与知觉预测研究——来自fNIRS的证据
Risk Preference and Perceptual Anticipation of Goalkeepers at Different Levels under Gain-Loss:Evidence from fNIRS
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摘要: 目的:了解得失情境下不同水平守门员的风险偏好的行为规律,并探讨得失情境下守门员知觉预测能力的变化及其相关认知神经特征。方法:采用单因素的实验设计,探索不同水平守门员基于先验信息进行知觉预测的大脑活动差异;采用双因素混合实验设计,探究得失情境信息影响守门员风险偏好和知觉预测表现的神经机制。结果:1)专家组守门员的知觉预测正确率显著高于新手组守门员,专家组与新手组的右侧角回和背外侧前额叶激活存在显著差异。2)损失情境下,两组守门员均偏好低风险低收益任务;收益情境下,专家守门员偏好高风险高收益任务。3)得失情境下,守门员的知觉预测组间差异不显著;在损失情境下,新手守门员知觉预测表现得到显著提升,右侧角回和视觉联络皮层激活显著增强。结论:1)守门员的知觉预测优势与右侧角回和背外侧前额叶有关。2)得失情境下的风险偏好规律在守门员中部分具有适用性。损失情境能增强新手守门员的右侧角回和视觉联络皮层激活程度,提高知觉预测表现。Abstract: Objective: To investigate the behavioral rules of risk preference of goalkeepers under the gain and loss situation, and then to explore the changes of perceptual anticipation ability and its related cognitive neural characteristics in goalkeepers. Methods: one independent variable between subject design was used to explore the brain activity differences in perceptual anticipation based on prior information of different level goalkeepers. A two-factor mixed experimental design was used to explore the neural mechanism of the influence of gain and loss situation on goalkeepers' risk preference and perceptual anticipation performance. Results: 1)The accuracy of perceptual anticipation of expert goalkeepers were significantly higher than that of novice goalkeepers, and the right angular and dorsolateral prefrontal cortex were activated significantly between expert goalkeepers and novice goalkeepers; 2) both groups of goalkeepers preferred low-risk and low-reward tasks in the loss situation, while expert goalkeepers preferred high-risk and high-reward tasks in the gain situation; 3) there was no significant difference in perceptual anticipation between the two groups under the gain and loss situation. In the loss situation, the novice goalkeeper's perceptual anticipation performance was improved significantly, and the the right angular gyrus and visual contact cortex was significantly enhanced. Conclusions: 1) The advantage of perceptual anticipation is related to the right angular gyrus and dorsolateral prefrontal cortex; 2) the rules of risk preference under the situation of gain and loss is partially applicable to goalkeepers. Loss situation can enhance the activation of right angular gyrus and visual contact cortex, and improve the perceptual anticipation performance in novice goalkeepers.