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Updated: Mar 11, 2026

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对食物提示的神经反应的探索性研究,用于避免/限制性食物摄入障碍的认知行为疗法
Kendra R Becker1,2,3, Haley Graver1,3, Avery L Van De Water3,4,5
1Eating Disorders Clinical and Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA.
The International journal of eating disorders
|March 10, 2026
概括
避免/限制性食物摄入障碍 (ARFID) 的认知行为疗法可能通过减少突出网络过度活动来起作用. 具体来说,右前带带皮层 (ACC) 的激活在治疗后减少.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 儿科心理学 儿科心理学
背景情况:
- 避免性/限制性食物摄入障碍 (ARFID) 是一种以有限的食物摄入为特征的疾病.
- 对ARFID的认知行为疗法 (CBT-AR) 是有前途的,但其神经机制尚未得到充分理解.
- 之前的研究表明,在ARFID患者中,在对食物的反应中,突出网络 (SN) 活动增加.
研究的目的:
- 研究CBT-AR的基础的神经机制.
- 测试治疗前的SN激活是否能预测ARFID青少年的治疗反应.
- 在ARFID中检查从治疗前到治疗后SN激活的变化.
主要方法:
- 功能磁共振成像 (fMRI) 用于测量ARFID的年轻人的大脑活动.
- 参与者在治疗前和治疗后,在禁食状态下观看食物和非食物图像.
- 24名ARFID患者接受了治疗前的fMRI扫描,14人完成了治疗后的扫描.
主要成果:
- 在治疗前SN激活与ARFID症状减少或缓解无关.
- 从治疗前到治疗后观察到右前带状皮层 (ACC) 过度激活的显著下降.
- 这种ACC活动的减少与大效应大小 (d=1.1) 有关.
结论:
- 在SN神经活动的变化,特别是在ACC中,可能是CBT-AR对ARFID患者有益的一种机制.
- 这些试点发现表明,CBT-AR可能调节参与突出处理的大脑区域.
- 需要进一步的研究,包括随机对照试验,以证实这些结果.
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