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人类条形状协会巨型集群

Heather L Kosakowski¹, Noam Saadon-Grosman¹, Jingnan Du¹

¹Department of Psychology, Center for Brain Science, Harvard University, Cambridge, Massachusetts, United States.

Journal of neurophysiology

|March 20, 2024

概括

尾状核,是基底质的一部分,包含与五个关联网络相连的不同区域,反映大脑皮层组织. 这一发现揭示了尾状体内的细粒度网络分离,增强了我们对大脑功能的理解.

科学领域:

神经科学是一个神经科学.
认知神经科学认知神经科学
神经成像是一种神经成像.

背景情况:

条纹体,特别是尾状核,接收皮质投射,支持各种大脑功能.
之前的研究表明,基底质有专门的循环,但详细的组织仍在调查中.

研究的目的:

用高分辨率神经成像来调查尾状核的详细组织.
要确定尾状核是否反映了大脑皮层中发现的专业网络组织.

主要方法:

在多个参与者 (最初是2,然后是15个) 上使用了个体内精确的神经成像.
在皮层中分析了尾状区域和分布式关联网络之间的功能连接.
检查了已识别的尾状区域的横向性和空间组织.

主要成果:

在尾状体内确定了五个不同的"状协会巨型集群",每一个都与特定的皮层协会网络相结合.
证实了这些尾状网络总结了它们的皮层对应物的组织和空间分布.
在尾状巨团中观察到不对称性,包括语言相关区域的左侧化,反映皮质模式.

结论:

尾状核表现出多个高阶认知网络的细粒度分离,反映了大脑皮层组织.
这种详细的组织扩展了对专门的基底腺节回路的理解.
这些发现突出了条纹体和大脑皮层之间的平行组织原则.

关键词:

协会皮层协会皮层基底性腺 (Basal Ganglia) 是一个功能磁力共振成像 (fMRI) 是一种功能连接性的功能连接性条纹体的条纹体.

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