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食物去/不去训练改变了神经回路,用于评估食物,减少食欲
Yuko Nakamura1, Mizuki Okemoto2, Toshikazu Ikuta3
1Center for Evolutionary Cognitive Sciences, Graduate School of Art and Sciences, The University of Tokyo, Meguro-ku, Tokyo, 153-8902, Japan.
Appetite
|October 27, 2023
概括
食物去/不去训练可能会降低高热量食物的价值,减少零食摄入量. 这种抑制性训练会改变食物评估区域的大脑反应,促进更健康的饮食习惯.
科学领域:
- 神经科学是一个神经科学.
- 行为科学 行为科学
- 营养心理学 营养心理学
背景情况:
- 传统上,食物去/不去训练被视为抑制训练,以减少高热量食物的欲望.
- 最近的研究表明,它可能会降低食物的价值,而不是加强抑制控制.
- 这项研究研究了食物去/不去培训对食物值的影响背后的神经机制.
研究的目的:
- 为了测试假设,食物去/不去训练会改变食物评估区域对不去食物的大脑反应.
- 检查这种培训对主观食物可取性和每日零食消费的影响.
- 探索与食物线索相关的神经活动和功能连接的变化.
主要方法:
- 进行了一项重复测量功能磁共振成像 (fMRI) 研究.
- 健康的参与者 (n=26) 接受了为期3周的食物去/不去训练,与对照者 (n=24).
- 参与者看到了高卡路里和低卡路里食物的图像,并配合了去或不去的线索.
主要成果:
- 食物去/不去训练减少了对不去食物的渴望,增加了对去食物的渴望.
- 减少对零食食物的欲望与每日零食摄入量减少相关.
- 食物评估区域的神经反应增加了食物,功能连接发生了变化.
- 训练没有显著影响冲动性或克制的饮食特征.
结论:
- 食物去/不去培训通过改变食物评估区域的大脑反应来降低不去食物的价值.
- 这种值导致每日零食摄入量减少,这表明有可能促进更健康的食物选择.
- 培训的机制似乎是食物值,而不是加强抑制控制.
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