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衣草暴露对健康女性大脑休息状态网络的长期影响

Ron Kupers^1,2, Océane Dousteyssier³, Jérôme Delforge³

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

Frontiers in neuroscience

|June 25, 2025

概括

长时间暴露于衣草会改变女性的大脑网络,影响持续至暴露后两个小时. 这项研究强调了嗅觉刺激对大脑活动的持久影响.

科学领域:

神经科学是一个神经科学.
嗅觉研究嗅觉研究
脑部成像脑部成像

背景情况:

关于长期暴露于气味对大脑的影响的研究有限.
休息状态fMRI (rsfMRI) 用于研究休息期间的大脑活动.

研究的目的:

调查长时间暴露在衣草对大脑活动的影响.
确定这些影响是否在暴露后还存在.

主要方法:

在暴露于衣草之前,期间和之后,对14名健康女性进行了rsfMRI扫描.
独立组件分析确定了突出网络 (SAL) 和默认模式网络 (DMN).
分析了SAL和DMN之间的功能连接 (FC).

主要成果:

在SAL和DMN之间发现了显著的时间变化的相互作用.
衣草暴露增加了SAL内的FC,并在SAL和DMN之间产生了负相关性.
这种负相关性在暴露后加剧,两小时后转变为正相关性.

结论:

长时间暴露于衣草会在女性中产生持久的脑部影响,可检测长达2小时.
研究结果表明,芳香疗法和气味干预措施的潜在应用.
建议对不同气味和男性参与者进行进一步的研究.

关键词:

独立组成部分分析 (ICA)默认模式网络 (DMN) 是一个默认模式网络.嗅觉连接器连接器休息状态的功能性MRI (rsfMRI)突出网络 (SAL) 是一个突出网络.

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