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嗅觉增加了当观看情感电影时大脑活动的同步

Eloïse Gerardin^1,2, Jérôme Delforge², Océane Dousteyssier²

¹Institute of NeuroScience (IoNS), UCLouvain, Brussels, Belgium.

Journal of the International Neuropsychological Society : JINS

|July 30, 2025

概括

一项研究发现,嗅到某种气味可以增强大脑活动的人际同步,尤其是在负面情绪体验期间. 这表明气味在社交沟通和共享情绪状态中起着关键作用.

科学领域:

神经科学是一个神经科学.
社会认知是指社会认知.
嗅觉处理嗅觉处理

背景情况:

功能磁共振成像 (fMRI) 研究表明,在共享的情感,叙事或注意状态期间,大脑活动的人际同步.
气味可以影响与记忆,情绪和社会认知相关的大脑区域,暗示共享的嗅觉体验和同步的大脑活动之间的联系.

研究的目的:

为了研究正值的气味对大脑活动主体间相关性 (ISC) 的影响.
探索嗅觉刺激如何调节健康志愿者的神经同步在情感唤起的电影观看期间.

主要方法:

利用fMRI测量20名健康志愿者的大脑活动.
参与者在两个随机的会议中观看了旨在引起积极或消极情绪的电影片段:一个带有气味,一个没有.
分析了主体间相关性 (ISC),以量化参与者之间大脑活动的同步.

主要成果:

与对照条件相比,气味的存在显著增加了几个大脑区域的ISC,包括上旋转 (STG).
在诱导负面情绪的电影中,气味诱导的ISC增加更为明显.
对于负面电影,观察到一个时间对气味的相互作用,在后来的剪辑中,STG和Supramarginal Gyrus的ISC更高.

结论:

嗅觉刺激增强了大脑活动的人际同步,其效果由情感价值调节.
上回旋 (STG) 在气味媒介的社会沟通中起着至关重要的作用.
分享的嗅觉体验可以加强神经同步,特别是在充满情感的社会环境中.

关键词:

嗅觉是一种嗅觉.情绪情绪情绪情绪情绪功能磁力共振成像 (fMRI) 是一种功能共振成像.主体间的相关性.这是一种伪超扫描.社会大脑社会大脑

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