在高和低认知负载下,自我关心和亲社会决策的不同神经机制
Zhengjie Liu1, Ru Song1, Jie Liu1,2
1School of Psychology, Shenzhen University, Shenzhen, China.
Human brain mapping
|August 6, 2025
概括
认知负载增加了自我关注和亲社会行为,特别是对他人. 同理心会缓和这种效应,有不同的神经路径被确定为自我利益与压力下的社会决策.
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
- 社会决策的社会决策.
背景情况:
- 认知负载影响决策,但其对自我关心与亲社会选择及其神经支的差异性影响尚未完全理解.
- 了解这些机制对于理解不同认知约束下的社会行为至关重要.
研究的目的:
- 调查认知负载如何对自我关心和亲社会决策的神经机制产生不同影响.
- 检查同情心在缓解这些影响中的作用.
- 在认知负载下识别与自我利益和利他主义相关的独特神经通路.
主要方法:
- 参与者完成了一个代币支出任务,以减少低和高认知负载条件下的噪音,为自己或他人.
- 收集了关于代币支出和同情程度的行为数据.
- 神经成像 (fMRI) 用于分析大脑激活和功能连接模式.
主要成果:
- 高认知负载增加了对自己和他人的支出,对亲社会决策的影响更为明显.
- 较高的同理心与在高认知负载下更大的亲社会行为相关.
- 神经成像显示,在高负载下进行亲社会决策时,左侧胰岛激活增加了自我关心的决策,双边角-角结 (TPJ) 和右侧脊侧上额头 (dlSFG) 激活了亲社会决策.
- 在TPJ-dlSFG-前额网络中的功能连接预测了认知负载对亲社会选择的影响.
结论:
- 认知负载通过insula激活增强自我关注,与突出性和自我保护有关.
- 在认知负载下的亲社会行为依赖于TPJ-dlSFG-前额网络中的同情和认知控制的整合.
- 这些发现阐明了在认知约束下管理社会决策的独特神经通路.
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