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Updated: Jul 4, 2025

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与饮食,体重和身体形象相关的认知策略背后的一个神经网络涉及到神经网络
Cristiana C Marques1,2,3, Alexandre Sayal1,4, Joana Crisóstomo1,5
1Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, Portugal.
Frontiers in human neuroscience
|February 6, 2024
概括
对食物和身体形象的担忧会引发负面情绪,促使自我批评或自我保证等认知策略. 大脑成像揭示了这些策略的独特的神经模式,为情绪调节提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 认知科学 认知科学
背景情况:
- 对食物摄入量,体重和身体形状的担忧可以引起负面情绪.
- 这些情绪可能会导致个人使用认知策略来调节情绪.
- 了解这些策略的神经基础对于解决相关的心理痛苦至关重要.
研究的目的:
- 调查用于管理与饮食,体重和身体形象相关的情绪的认知策略的神经行为相关性.
- 区分与特定认知策略相关的神经反应模式,包括自我批评,回避,反省和自我保证.
- 探索自我报告的情绪状态,认知策略的使用和大脑激活之间的关系.
主要方法:
- 开发一种新的功能磁共振成像 (fMRI) 任务.
- 向健康的女性参与者展示与饮食,体重和身体形象有关的音频句子.
- 指示参与者在与食物或身体图像接触时内在重复句子,然后进行情绪和绩效报告.
- 使用表示相似性分析 (RSA) 来检查每个认知策略的独特神经模式.
主要成果:
- 所有的认知策略都涉及到一个共同的神经网络,包括下部和上部的额头回旋,轨道前皮层,前带皮层,胰岛和背部条纹体.
- 代表性相似性分析表明,每个认知策略都有不同的神经反应模式.
- 自我批评与上额回形 (SFG) 激活有正相关;自我同情得分与岛膜和右膜激活有负相关;自我放心与轨道前皮层活动有负相关.
结论:
- 一个特定的神经网络是管理与饮食,体重和身体形象有关的情绪的认知策略的基础.
- 神经行为相关性模式因所采用的认知策略而异.
- 研究结果突出了认知策略,情绪调节和大脑功能在身体形象和饮食问题的背景下之间的复杂相互作用.
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