负责奖励灵敏度与延迟折扣相关的神经基质:左背前带带皮层与右前带皮层连接
Hengyue Zhao1,2, Zhuoran Wei1,2, Tingyong Feng3,4
1Faculty of Psychology, Southwest University, No. 2, Tiansheng Road, Beibei District, Chongqing, 400715, China.
Brain structure & function
|October 15, 2025
概括
奖励敏感度较高的个体表现出更大的延迟折扣,更倾向于立即奖励. 这种行为与大脑结构和脊前环状皮质 (dACC) 和前皮质的连接有关.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 决策科学 决策科学 决策科学
背景情况:
- 延迟折扣描述了基于延迟的未来奖励的值.
- 奖励敏感性,或对奖励的响应能力,可能会影响延迟折扣.
- 这种关系的神经支尚未得到充分理解.
研究的目的:
- 调查奖励灵敏度与延迟折扣之间的联系的神经基础.
- 利用结构和功能神经成像技术.
主要方法:
- 采用基于声素的形态测量 (VBM) 进行灰色物质体积分析.
- 进行静止状态功能连接 (RSFC) 来评估神经网络相互作用.
- 与神经成像数据相关的奖励灵敏度和延迟折扣的相关行为测量.
主要成果:
- 更高的奖励灵敏度与延迟折扣行为正相关.
- 在背部前带皮层 (dACC) 中,VBM显示了奖励灵敏度和灰质体积之间的积极关联.
- RSFC揭示了奖励敏感性和dACC-precuneus连接性之间的负相关性,这部分介导了行为关系.
结论:
- 奖励灵敏度通过涉及dACC和precuneus的神经机制影响延迟折扣.
- 涉及到dACC灰质体积和dACC-precuneus功能连接.
- 结果提供了关于时间间决策的个体差异的见解.
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