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Updated: Jun 6, 2025

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嗅觉训练会影响大脑结构和功能连接之间的相关性

Abolhasan Rezaeyan¹, Somayeh Asadi², Seyed Kamran Kamrava³

¹Department of Radiology, School of Paramedical Sciences, Gerash University of Medical Sciences, Gerash, Iran.

The neuroradiology journal

|December 3, 2024

概括

在创伤后解脱症 (PTA) 患者的嗅觉训练 (OT) 增强了大脑功能连接 (FC) 和嗅觉区域的结构变化. 经典和修改的OT方法都显示出改善,与解剖学大脑变化相关.

科学领域:

神经成像是一种神经成像.
神经科学是一个神经科学.
嗅觉研究嗅觉研究

背景情况:

神经成像研究揭示了创伤后解脱症 (PTA) 的功能连接 (FC) 变化和结构异常.
嗅觉训练 (OT) 和气味暴露可以改善嗅觉功能.
这项研究调查了PTA患者在OT后嗅觉大脑区域中FC和皮质厚度之间的联系.

研究的目的:

探索功能连接 (FC) 和皮质厚度之间的相关性,在与嗅觉相关的大脑区域,在经创伤后厌氧症 (PTA) 患者的嗅觉训练 (OT).

主要方法:

25名PTA患者被分为三个组:对照组 (没有训练),经典OT (4个固定气味),修改OT (4组4个连续气味).
嗅觉功能被评估使用Sniffin' Sticks测试在训练前和训练后.
磁共振成像 (MRI) 数据被分析为功能连接和大脑形态学.

主要成果:

修改后的OT增加了中间轨道前皮层和前环皮层的激活,在皮质皮层 (PIRC) 和尾状核之间增强了FC.
经典的OT增加了PIRC和前中心回形之间的岛皮层激活和FC.
两个OT组都显示了与解剖学变化相关的大脑连接的显著改善.

结论:

密集的嗅觉训练可以增强大脑嗅觉处理区域的功能连接.
这些功能连接的改善与大脑中可测量的结构变化相关.

关键词:

功能连接性的功能连接性.这就是为什么MRI是MRI.大脑结构大脑结构嗅觉训练是通过嗅觉训练进行的.创伤后解热症是一种创伤后解热症.

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