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复古鼻阻塞减少了人类大脑中糖的神经处理
Hee-Kyoung Ko1, Jingang Shi2, Thomas Eidenberger3
1School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK.
IBRO neuroscience reports
|January 28, 2026
概括
复古鼻腔通道显著影响大脑如何感知糖味和口感. 阻止这些通路减少了主观感受和神经对甜味的反应.
科学领域:
- 神经科学是一个神经科学.
- 感官科学 感官科学
- 食品科学 食品科学 食品科学
背景情况:
- 传统上,不易挥发的味道,如糖糖,不被认为可以激活后鼻道.
- 最近的研究表明,气溶糖可以到达鼻后嗅觉区域,这表明它在味觉感知中起着作用.
- 通过鼻后通道感知糖的基础的神经机制仍然在很大程度上未知.
研究的目的:
- 通过鼻后通道研究通过鼻后通道感知糖的神经机制.
- 为了确定阻断后鼻道对大脑活动和主观味觉体验的影响.
- 探索神经反应,鼻后感觉,以及对甜味和口感的主观评价之间的关系.
主要方法:
- 健康的成年人 (N=34) 在品尝糖糖时接受了fMRI扫描,带有和没有鼻子剪贴以阻止后鼻气流.
- 全脑和感兴趣区域 (ROI) 分析侧重于涉及味觉,嗅觉,注意力,奖励和多模式集成的领域.
- 研究人员检查了神经活动与主观评价的愉悦性和口腔的相关性.
主要成果:
- 用鼻堵住鼻后通道显著减少了主观的口腔腹.
- 当逆鼻道被阻塞时,初级味觉,嗅觉,注意力和奖励ROI中的神经活动下降.
- 整个大脑的分析显示,与糖糖相关的活动在罗兰的部,舌环和鼻子剪贴的前部减少.
- 嗅觉和前额叶皮层的活动与主观的口腔和相关,但当后鼻鼻感受被屏蔽时,这种情况会减少.
结论:
- 阻断后鼻的感觉减少了对糖的主观和神经反应.
- 鼻后通道可能在感知"纯"味道方面发挥关键作用.
- 通过芳香调节来增强甜味感知,可以帮助开发更令人满意的低糖食品.
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