Krieger-Redwood, Katya Melanie, Wang, Xiuyi, Souter, Nicholas et al. (4 more authors) (2024) Graded and sharp transitions in semantic function in left temporal lobe. Brain and Language. 105402. ISSN 0093-934X
Abstract
Recent work has focussed on how patterns of functional change within the temporal lobe relate to whole-brain dimensions of intrinsic connectivity variation (Margulies et al., 2016). We examined two such ‘connectivity gradients’ reflecting the separation of (i) unimodal versus heteromodal and (ii) visual versus auditory-motor cortex, examining visually presented verbal associative and feature judgments, plus picture-based context and emotion generation. Functional responses along the first dimension sometimes showed graded change between modality-tuned and heteromodal cortex (in the verbal matching task), and other times showed sharp functional transitions, with deactivation at the extremes and activation in the middle of this gradient (internal generation). The second gradient revealed more visual than auditory-motor activation, regardless of content (associative, feature, context, emotion) or task process (matching/generation). We also uncovered subtle differences across each gradient for content type, which predominantly manifested as differences in relative magnitude of activation or deactivation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Author(s). Published by Elsevier Inc. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Psychology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 16 Apr 2024 15:10 |
Last Modified: | 15 Nov 2024 00:39 |
Published Version: | https://doi.org/10.1016/j.bandl.2024.105402 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.bandl.2024.105402 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:211564 |
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