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增强腹感的安慰剂干预减少了对食物线索的选择性注意力
Marina Lanz1,2, Verena Hoffmann1, Karin Meissner1,3
1Institute of Medical Psychology, Faculty of Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
Frontiers in psychiatry
|January 3, 2025
概括
在健康女性中,安慰剂诱导的腹感降低了对食物线索的注意力,这表明食欲调节和认知过程之间存在联系. 这突显了安慰剂干预治疗肥胖症的潜力.
科学领域:
- 认知神经科学 认知神经科学
- 行为心理学 行为心理学
- 肥胖问题研究研究
背景情况:
- 安慰剂干预表明,通过影响食欲和腹感,对治疗肥胖有希望.
- 体重较高的人对食物线索的注意力增加.
- 了解对注意力的安慰剂效应对于开发新型肥胖疗法至关重要.
研究的目的:
- 为了调查安慰剂诱导的食欲和腹感的变化是否会影响注意力分配.
- 为了检查安慰剂效应,注意力和饥饿和 ghrelin 水平等因素之间的相关性.
主要方法:
- 一项双盲研究将63名健康参与者随机分为食欲安慰剂,腹安慰剂或对照组.
- 使用安慰剂囊和预期操纵来诱导食欲或腹感.
- 一个视觉探测任务通过分析对食物和非食物线索的反应时间来测量注意力偏差.
主要成果:
- 用安慰剂诱导的腹感成功地抑制了女性对食物线索的注意力,但男性没有.
- 腹组的女性对食物提示的反应时间比非食物提示的反应时间更长.
- 反应时间与女性的主观饥饿和食物渴望相关.
结论:
- 在健康的女性中,安慰剂诱导的腹感可以抑制对食物的注意力分配.
- 这种效果可能通过减少饥饿和渴望食物来调解.
- 对腹感的安慰剂效应会影响复杂的认知过程,如注意力.
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