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Lookup NU author(s): Dr Luke BashfordORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2023 The Author(s). Recent literature suggests that tactile events are represented in the primary somatosensory cortex (S1) beyond its long-established topography; in addition, the extent to which S1 is modulated by vision remains unclear. To better characterize S1, human electrophysiological data were recorded during touches to the forearm or finger. Conditions included visually observed physical touches, physical touches without vision, and visual touches without physical contact. Two major findings emerge from this dataset. First, vision strongly modulates S1 area 1, but only if there is a physical element to the touch, suggesting that passive touch observation is insufficient to elicit neural responses. Second, despite recording in a putative arm area of S1, neural activity represents both arm and finger stimuli during physical touches. Arm touches are encoded more strongly and specifically, supporting the idea that S1 encodes tactile events primarily through its topographic organization but also more generally, encompassing other areas of the body.
Author(s): Rosenthal IA, Bashford L, Kellis S, Pejsa K, Lee B, Liu C, Andersen RA
Publication type: Article
Publication status: Published
Journal: Cell Reports
Year: 2023
Volume: 42
Issue: 4
Print publication date: 25/04/2023
Online publication date: 30/03/2023
Acceptance date: 13/03/2023
Date deposited: 05/03/2025
ISSN (electronic): 2211-1247
Publisher: Elsevier BV
URL: https://doi.org/10.1016/j.celrep.2023.112312
DOI: 10.1016/j.celrep.2023.112312
Data Access Statement: Original data is available at Zenodo and is publically available as of the date of publication [https://doi.org/10.5281/zenodo.7470655]. All original code has been deposited at Zenodo and is publically available as of the date of publication [https://doi.org/10.5281/zenodo.7470579]. Any additional information required to reanalyze the data reported in this paper is available from the lead contact upon request.
PubMed id: 37002922
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