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社会支持在食物提示处理和过度进食期间影响有效的神经连接:一条自下而上的路径

Mingyue Xiao^1,2, Yijun Luo^1,2, Hong Chen^1,2,3,4

¹Faculty of Psychology, Southwest University, Chongqing 400715, China.

International journal of clinical and health psychology : IJCHP

|February 3, 2025

概括

社会支持增强了参与控制对高热量食物的渴望的大脑网络. 这项研究揭示了社会支持如何影响神经通路,影响食物选择和过度饮食.

科学领域:

神经科学是一个神经科学.
心理学心理学心理学
神经成像是一种神经成像.

背景情况:

众所周知,社会支持可以缓解过度饮食.
关联社会支持与食品暗示处理的神经机制仍未得到充分探索.

研究的目的:

研究神经机制和有效的途径,通过社会支持影响食物提示处理和过度进食.
为了阐明大脑在不同的社会支持条件下对食物线索的反应.

主要方法:

使用功能磁共振成像 (fMRI) 和动态因果建模 (DCM) 分析.
包括58名健康的绝经前女性在社会支持 (SS) 和非社会支持 (NSS) 组中.
采用食物激励延迟 (FID) 任务来评估大脑激活和有效的连接.

主要成果:

当SS组接触到食物线索时,在执行控制网络 (ECN), Salience网络和奖励网络中表现出增加的激活,特别是在ECN内的高热量食物.
在高热量条件下,DCM分析揭示了SS组中增强的刺激神经通路,包括从右尾骨连接到右胰岛,右胰岛连接到右DLPFC,左门连接到左VMPFC的连接.
尾状体和岛状体之间的有效连接显示出与食物选择的负相关性.

结论:

社会支持调节神经通路,整合奖励敏感性,情绪突出性和抑制性控制,从而抑制渴望和摄入高热量食物.
这项研究提供了第一个神经证据,证明社会奖励和食物奖励处理之间有共同的神经基础.

关键词:

大脑激活活动大脑激活有效的连接连接有效的连接.食品奖励加工食品奖励加工吃得太多,就是吃得太多.社会支持社会支持

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