Domain-specific functional coupling between dorsal and ventral systems during action perception.
Domain-specific functional coupling between dorsal and ventral systems during action perception.
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DOI：
10.1038/s41598-020-78276-4
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发表时间：
2020-12-03
影响因子：
4.6
通讯作者：
Bi Y
中科院分区：
文献类型：
--
作者：
Yang H;He C;Han Z;Bi Y
对动作和物体的视觉感知已经被证明会激活不同的皮层系统：动作感知系统跨越顶叶、额叶和背侧颞区;物体感知更强烈地依赖于腹侧枕颞皮层（VOTC）。与已建立的对象域结构（例如，面孔与伪影），它是不太清楚的动作感知系统是否受到类似的领域原则，以及它是否与腹侧物体识别系统在特定领域的方式进行通信。在一项旨在评估区域活动和基于任务的功能连接（FC）模式的fMRI长块实验中，参与者观看了人类对同一组无意义形状执行两个动作域的动画视频，而没有对象域信息：社交-交际-动作（例如，挥动）和操纵动作（例如，折叠）。我们观察到动作域特异性激活，与上级颞沟和右中央前区更强烈的反应，在社会交往行动知觉;缘上回，下和上级顶叶，中央前回在操作行动知觉。动作知觉系统的两个功能域以特定的方式与VOTC进行信息交流：在社会-交际-动作知觉过程中，社会-交际-动作系统与双侧梭状面孔区之间的FC增强;在操纵-动作知觉过程中，操纵-动作系统与左侧工具偏好外侧枕颞叶皮层之间的FC增强。有一个显着的相关性之间的FC与动作系统和VOTC体素的局部活动强度。我们的研究结果突出了人类互动的社会和操纵领域，作为对象和动作感知系统的总体原则，跨系统的功能性通信。
Visual perception of actions and objects has been shown to activate different cortical systems: action perception system spanning more dorsally, across parietal, frontal, and dorsal temporal regions; object perception relying more strongly the ventral occipitotemporal cortex (VOTC). Compared to the well-established object-domain structure (e.g., faces vs. artifacts) in VOTC, it is less known whether the action perception system is constrained by similar domain principle and whether it communicates with the ventral object recognition system in a domain-specific manner. In a fMRI long-block experiment designed to evaluate both regional activity and task-based functional connectivity (FC) patterns, participants viewed animated videos of a human performing two domains of actions to the same set of meaningless shapes without object-domain information: social-communicative-actions (e.g., waving) and manipulation-actions (e.g., folding). We observed action-domain-specific activations, with the superior temporal sulcus and the right precentral region responding more strongly during social-communicative-action perception; the supramarginal gyrus, inferior and superior parietal lobe, and precentral gyrus during manipulation-action perception. The two domains of action perception systems communicated with VOTC in domain-specific manners: FC between the social-communicative-action system and the bilateral fusiform face area was enhanced during social-communicative-action perception; FC between the manipulation-action system and the left tool-preferring lateral occipitoptemporal cortex was enhanced during manipulation-action perception. There was a significant correlation between the FC-with-action-system and the local activity strength across VOTC voxels. Our findings highlight social- and manipulation-domains of human interaction as an overarching principle of both object and action perception systems, with domain-based functional communication across systems.
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影响因子：
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作者：
Egorova N;Shtyrov Y;Pulvermüller F
通讯作者：
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