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. 2023 Jul 24;13:11938. doi: 10.1038/s41598-023-38967-0

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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The sPf tract fixed effect maps in axial, coronal, sagittal, 3D rendered and surface views: Connectivity: The sPf white matter fiber shows a slight crossover with the STPs and PPTPs within the thalamus. The subcortical projections include caudate, putamen, and pallidum. sPF connections include the projections from the brainstem and CST. The cortical projections via CST and SLF enter the SSC, PSC, PMC, IC, PrG, PoG, superior parietal lobule 7PR, and inferior parietal lobule. Intrahemispheric pathway projected to the body of corpus callosum. STPs sensory thalamic projection site from oxford thalamus atlas, PPTPs posterior parietal thalamic projection site from oxford thalamus atlas, CST cortico spinal tract, SLF superior longitudinal fasciculus, SSC secondary somatosensory cortex, PSC primary somatosensory cortex, PMC primary motor cortex, IC insular cortex, PrG precentral gyrus, PoG postcentral gyrus. The detailed anatomical assignments are given in Supplementary Table 6.