The role of the anterior temporal cortex in action: Evidence from fMRI multivariate searchlight analysis during real object grasping

Knights, Ethan, Smith, Fraser W. and Rossit, Stephanie (2022) The role of the anterior temporal cortex in action: Evidence from fMRI multivariate searchlight analysis during real object grasping. Scientific Reports, 12. ISSN 2045-2322

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Abstract

Intelligent manipulation of handheld tools marks a major discontinuity between humans and our closest ancestors. Here we identified neural representations about how tools are typically manipulated within left anterior temporal cortex, by shifting a searchlight classifier through whole-brain real action fMRI data when participants grasped 3D-printed tools in ways considered typical for use (i.e., by their handle). These neural representations were automatically evocated as task performance did not require semantic processing. In fact, findings from a behavioural motion-capture experiment confirmed that actions with tools (relative to non-tool) incurred additional processing costs, as would be suspected if semantic areas are being automatically engaged. These results substantiate theories of semantic cognition that claim the anterior temporal cortex combines sensorimotor and semantic content for advanced behaviours like tool manipulation.

Item Type: Article
Additional Information: This work was funded by grant (184/14) from the BIAL Foundation awarded to S. Rossit & F.W. Smith.
Faculty \ School: Faculty of Social Sciences > School of Psychology
Depositing User: LivePure Connector
Date Deposited: 06 May 2022 03:55
Last Modified: 23 Jun 2022 13:31
URI: https://ueaeprints.uea.ac.uk/id/eprint/84877
DOI: 10.1038/s41598-022-12174-9

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