在战略决策过程中,特征奖励灵敏度调节了与 temporoparietal 结和 Anterior Insula 的连接
Daniel Sazhin1, James B Wyngaarden1, Jeff B Dennison1
1Department of Psychology & Neuroscience, Temple University, Philadelphia, PA, USA.
Biological psychology
|August 29, 2024
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较少的战略选择有关,影响前半岛和角圈等区域的大脑连接.
科学领域:
- 神经科学是一个神经科学.
- 决策科学 决策科学 决策科学
- 社会心理学 社会心理学
背景情况:
- 社会决策,就像谈判一样,涉及到公平与自私之间的平衡.
- 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.
- 个人奖励灵敏度对战略决策过程中神经反应的影响尚不清楚.
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.
- 通过使用fMRI在社会环境中检查公平和自私的神经相关性.
- 了解奖励灵敏度和经济游戏中的大脑反应之间的关系.
主要方法:
- 基于任务的功能磁共振成像 (fMRI) 用于54名参与者.
- 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.
- 终极通游戏和独裁者游戏被用来引出战略性讨价还价选择.
主要成果:
- 战略决策的特点是受到威胁时的公平性和不受威胁时的自私性,激活了下额前 (IFG) 和前胰岛 (AI).
- 在战略决策过程中观察到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:
- 特征奖励灵敏度在战略性社会决策过程中显著调节神经反应.
- 特定的大脑区域 (IFG,AI,TPJ,角结节) 和它们的连接性参与平衡公平和自私.
- 这些发现凸显了社会和决策神经科学中奖励灵敏度的个体差异的重要性.
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