Social comparison modulates the neural responses to regret and subsequent risk-taking behavior.
Social comparison modulates the neural responses to regret and subsequent risk-taking behavior.
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DOI：
10.1093/scan/nsy066
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发表时间：
2018-10-25
影响因子：
4.2
通讯作者：
Xu M
中科院分区：
文献类型：
--
作者：
Liu Z;Zheng L;Li L;Xu J;Cheng X;Guo X;Mulcahy J;Xu M
目前的功能磁共振成像功能磁共振研究调查了他人取得的结果如何影响主观后悔和随后的行为。在任务中，参与者被要求连续打开一系列盒子，直到他们决定停止。每个盒子都有奖励(黄金)，除了一个包含不利刺激(魔鬼)的盒子，这会导致参与者失去他们在那次试验中收集的所有黄金。重要的是，参与者被告知，他们遇到的每一次试验也将由另一名玩家并行进行。在反馈阶段，参与者和其他参与者的结果都被展示出来。在行为上，当客观结果改善或他们的结果比其他人更好时，参与者感到更少的后悔和更少的风险。参与者在经历了后悔之后倾向于承担更多的风险。在神经水平，随着客观结果的改善，腹侧纹状体(VS)和前扣带回皮质(PgACC)的激活增加。在所有参与者中，VS的激活与相应的行为变化呈正相关。VS的激活增加，与背侧前扣带回(DACC)的功能连接明显增强，其结果优于其他组。此外，VS-dACC功能连接与冒险行为相关。
The current functional magnetic resonance imaging fMRI study investigated how outcomes achieved by others affect subjective regret and subsequent behavior. During the task, participants were asked to open a series of boxes consecutively until they decided to stop. Each box contained a reward (gold), except for one that contained an adverse stimulus (devil), which caused the participants to lose all the gold they collected in that trial. Importantly, participants were instructed that every trial they encountered would also be played in parallel by another player. During the feedback stage, outcomes of both the participant and the other player were presented. Behaviorally, participants felt less regret and took less risk when objective outcomes improved or when their outcomes were better than others. Participants tended to take more risk after experiencing regret. At the neural level, the ventral striatum (VS) and the pregenual anterior cingulate cortex (pgACC) showed increased activation as objective outcomes improved. Across participants, activation of the VS was positively correlated with corresponding behavioral changes. Increased activation of the VS and significantly higher functional connectivity with the dorsal anterior cingulate cortex (dACC) were found when their outcomes were better than others. Additionally, the VS–dACC functional connectivity was correlated with risk-taking behavior.
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影响因子：
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作者：
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影响因子：
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