Acute stress impairs reward positivity effect in probabilistic learning | |
Zhang, Xukai4,5; Li, Peng3,5; Chen, Jie2; Li, Hong1,3,5 | |
刊名 | PSYCHOPHYSIOLOGY |
2020-01-17 | |
页码 | 11 |
关键词 | acute stress expectancy reinforcement learning reward positivity reward prediction error |
ISSN号 | 0048-5772 |
DOI | 10.1111/psyp.13531 |
产权排序 | 4 |
文献子类 | article |
英文摘要 | Decision making based on feedback learning requires a series of cognitive processes, including estimating the probability of particular outcomes and modulating expectations between expected versus actual outcomes. It has been suggested that stress affects decision making and subsequent processing of feedback valence and magnitude. However, less is known about the effect of acute stress on reward expectancy. In the current study, participants performed a probabilistic learning task, in which they learned an association between response and feedback within different reward expectancy trials (30% and 70%) under the conditions of stress (threat of shock) and safety (no shock). We recorded event-related potentials (ERPs) to measure the reward positivity (RewP) which reflects reward prediction error signals during feedback processing. Behavioral data indicated that participants performed better in the 70% reward trials than in the 30% reward trials. However, no significant difference was observed between stress and safe conditions. Importantly, ERP results indicated that unexpected feedback elicited larger RewP than did expected feedback and this expectancy effect of RewP was reduced in the stress relative to safe condition. Moreover, the correlations between RewP and choice accuracy (70% - 30% reward condition) in the safe and stress conditions were in a similar pattern; yet, only in the stress condition the correlation reached significantly. This may indicate that blunted RewP was associated with impaired performance at an individual level. Our study provides ERP evidence that acute stress affects brain responses to reward prediction error processing, which may explain various abnormal learning behaviors associated with stress-related disorders. |
资助项目 | National Natural Science Foundation of China[31671158] ; National Natural Science Foundation of China[31671150] ; Guangdong Key Project in Development of new tools for diagnosis and treatment of Autism[2018B030335] |
WOS关键词 | MEDIAL FRONTAL-CORTEX ; PREDICTION ERROR ; PREFRONTAL CORTEX ; DOPAMINE RELEASE ; LIFE STRESS ; FEEDBACK ; PERFORMANCE ; SENSITIVITY ; RESPONSES ; SIGNALS |
WOS研究方向 | Psychology ; Neurosciences & Neurology ; Physiology |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000507760800001 |
资助机构 | National Natural Science Foundation of China ; Guangdong Key Project in Development of new tools for diagnosis and treatment of Autism |
内容类型 | 期刊论文 |
源URL | [http://ir.psych.ac.cn/handle/311026/30660] |
专题 | 心理研究所_认知与发展心理学研究室 |
通讯作者 | Li, Peng |
作者单位 | 1.Shenzhen Inst Neurosci, Ctr Emot & Brain, Shenzhen, Peoples R China 2.Chinese Acad Sci, Inst Psychol, Beijing, Peoples R China 3.Shenzhen Univ, Shenzhen Key Lab Affect & Social Cognit Sci, Shenzhen, Peoples R China 4.Univ Jyvaskyla, Fac Educ & Psychol, Jyvaskyla, Finland 5.Shenzhen Univ, Brain Funct & Psychol Sci Res Ctr, 3688 Nanhai Rd, Shenzhen 518060, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Xukai,Li, Peng,Chen, Jie,et al. Acute stress impairs reward positivity effect in probabilistic learning[J]. PSYCHOPHYSIOLOGY,2020:11. |
APA | Zhang, Xukai,Li, Peng,Chen, Jie,&Li, Hong.(2020).Acute stress impairs reward positivity effect in probabilistic learning.PSYCHOPHYSIOLOGY,11. |
MLA | Zhang, Xukai,et al."Acute stress impairs reward positivity effect in probabilistic learning".PSYCHOPHYSIOLOGY (2020):11. |
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