Organizing principles of pulvino-cortical functional coupling in humans

Michael J. Arcaro (), Mark A. Pinsk, Janice Chen and Sabine Kastner
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Michael J. Arcaro: Princeton University
Mark A. Pinsk: Princeton University
Janice Chen: Johns Hopkins University
Sabine Kastner: Princeton University

Nature Communications, 2018, vol. 9, issue 1, 1-14

Abstract: Abstract The pulvinar influences communication between cortical areas. We use fMRI to characterize the functional organization of the human pulvinar and its coupling with cortex. The ventral pulvinar is sensitive to spatial position and moment-to-moment transitions in visual statistics, but also differentiates visual categories such as faces and scenes. The dorsal pulvinar is modulated by spatial attention and is sensitive to the temporal structure of visual input. Cortical areas are functionally coupled with discrete pulvinar regions. The spatial organization of this coupling reflects the functional specializations and anatomical distances between cortical areas. The ventral pulvinar is functionally coupled with occipital-temporal cortices. The dorsal pulvinar is functionally coupled with frontal, parietal, and cingulate cortices, including the attention, default mode, and human-specific tool networks. These differences mirror the principles governing cortical organization of dorsal and ventral cortical visual streams. These results provide a functional framework for how the pulvinar facilitates and regulates cortical processing.

Date: 2018
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DOI: 10.1038/s41467-018-07725-6

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