在战略决策过程中,特征奖励灵敏度调节了与关节和前侧胰岛的连接
Daniel Sazhin1, James B Wyngaarden1, Jeff B Dennison1
1Department of Psychology & Neuroscience, Temple University, Philadelphia, PA, USA.
bioRxiv : the preprint server for biology
|October 31, 2023
概括
人们在社会决策中平衡公平与自私. 较低的奖励灵敏度与在讨价还价时做出不那么战略性的选择有关,影响了关键领域的大脑活动.
科学领域:
- 神经科学是一个神经科学.
- 社会心理学 社会心理学
- 决策科学 决策科学 决策科学
背景情况:
- 社会决策往往需要平衡公平与自私.
- 以前的研究将执行功能和奖励处理区域与受到拒绝威胁的讨价还价行为联系起来.
- 奖励灵敏度的个体差异对战略决策神经机制的作用仍然不清楚.
研究的目的:
- 研究特征奖励敏感性如何调节神经活动和连接在战略性谈判决策期间.
- 在社会谈判背景下检查公平和自私的神经相关性.
主要方法:
- 在54名参与者中使用了基于任务的功能磁共振成像 (fMRI).
- 参与者填写了调查问卷,评估奖励敏感性 (对奖励/惩罚的敏感性) 和行为系统.
- 参与者玩了最后通和独裁者游戏,在拒绝可能时表现出战略公平,否则表现出自私.
主要成果:
- 在谈判期间的战略决策激活了下额 (IFG) 和前胰岛 (AI).
- 在战略选择过程中,观察到IFG和Temporoparietal Junction (TPJ) 之间的连接性较高.
- 较低的奖励灵敏度与较少的战略选择以及人工智能和角性转移之间更高的连接相关.
结论:
- 特征奖励敏感性在社会环境中在战略决策过程中显著调节神经反应.
- 研究结果强调了个体奖励敏感性与控制公平和自私的大脑机制之间的相互作用.
- 这项研究强调了奖励敏感性在社会和决策神经科学中的重要性.
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