食物恐惧症与运动皮质激发性相关,以应对与厌恶相关的刺激
Antonella Cano1, Chiara Lacana2, Nicola Loi1
1Department of Biomedical Sciences, University of Sassari, Sassari, Italy; University Hospital of Sassari, AOU Sassari, Sassari, Italy.
Appetite
|October 5, 2025
概括
观看腐烂的食物图片并不会改变大肌肉和运动皮层的刺激能力. 然而,加剧的食物恐惧症与手肌运动皮质在观看腐烂的食物时兴奋度的增加有关,这表明存在回避机制.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 生理学 生理学 生理学
背景情况:
- 厌恶是一种生存情绪,与拒绝受污染的食物有关.
- 前消化道 (AD) 肌肉有助于通过口口径排出有害物质.
- 味觉厌恶对AD肌肉初级运动皮质 (M1) 的影响尚不清楚.
研究的目的:
- 为了研究看看令人厌恶的食物图像是否会调节AD肌肉中的M1兴奋度.
- 探索厌恶敏感性,食物恐惧症和M1刺激性之间的关系.
- 作为对照,检查第一个背内骨肌 (FDI) 中的M1兴奋度.
主要方法:
- 经磁刺激 (TMS) 用于在AD M1和FDI M1中测量短间隔皮质内抑制 (SICI).
- 参与者被动地观看未受损和受损食物的图像,以及厌恶/快乐的面部表情.
- 经过验证的问卷评估了厌恶感,食物恐惧症和地中海饮食的坚持.
主要成果:
- 查看坏的食物图片并没有显著改变AD肌肉中的M1刺激能力.
- 较高的食物恐惧症得分与在FDI代表区域中M1兴奋度的增强有关,当看到腐烂的食物时.
- 对于厌恶或快乐的面部表情,没有观察到M1兴奋度的显著调节.
结论:
- 味觉厌恶刺激似乎没有直接影响大开口的AD肌肉的初级运动皮质刺激性.
- 食物恐惧症与手肌M1刺激能力的改变有关,这表明它在识别和避免潜在有害食物方面发挥了作用.
- 这项研究将食物恐惧症的特征与运动皮层刺激能力的神经生理学差异联系起来.
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