触觉探索和图像在状皮质网络中引起了不同的神经动态
Qi Zhang1,2, Yang Yang2, Zhemeng Wang2,3
1School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
Frontiers in neuroscience
|August 8, 2025
概括
触觉图像和感知使用不同的神经通信模式. 虽然两者都涉及到类似的大脑区域,但信息处理和共享的方式在感知和想象触摸之间存在显著差异.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 感官感知是一种感官感知.
背景情况:
- 触觉图像可以在没有直接触摸的情况下重建感官体验.
- 在触觉感知和图像中的神经激活模式在空间上重叠.
- 在触觉图像期间,在状网络内的皮层通信动态尚不清楚.
研究的目的:
- 在触觉成像过程中调查神经动态和区域间通信.
- 为了比较触觉感知 (扫描) 和触觉图像的神经机制.
主要方法:
- 使用立体电脑电图 (sEEG) 在 5 个患者中植入了电极.
- 在主动纹理扫描和触觉图像任务中记录了sEEG数据.
- 在顶层皮层区域内分析了局部神经表示和区域间通信.
主要成果:
- 观察到局部神经同步的相反调制:在扫描时被抑制,在成像时被激活.
- 在扫描过程中发现从体感皮质到后壁皮质 (PPC) 的方向通信被抑制,在成像过程中得到增强.
- 在成像,但不是扫描期间,确定了超边缘和前之间增强的双向通信.
结论:
- 触觉感知和图像涉及重叠的皮质区域.
- 局部神经编码和区域间通信的独特机制使触觉感知和图像有所区别.
- 一个独特的途径,涉及到超边缘和前,可能支持触觉图像.
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