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Dissociable roles of the inferior longitudinal fasciculus and fornix in face and place perception

Hodgetts, Carl J., Postans, Mark, Shine, Jonathan P., Jones, Derek K., Lawrence, Andrew David and Graham, Kim Samantha 2015. Dissociable roles of the inferior longitudinal fasciculus and fornix in face and place perception. eLife 4 , e07902. 10.7554/eLife.07902

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Abstract

We tested a novel hypothesis, generated from representational accounts of medial temporal lobe (MTL) function, that the major white matter tracts converging on perirhinal cortex (PrC) and hippocampus (HC) would be differentially involved in face and scene perception, respectively. Diffusion tensor imaging was applied in healthy participants alongside an odd-one-out paradigm sensitive to PrC and HC lesions in animals and humans. Microstructure of inferior longitudinal fasciculus (ILF, connecting occipital and ventro-anterior temporal lobe, including PrC) and fornix (the main HC input/output pathway) correlated with accuracy on odd-one-out judgements involving faces and scenes, respectively. Similarly, BOLD response in PrC and HC, elicited during oddity judgements, was correlated with face and scene oddity performance, respectively. We also observed associations between ILF and fornix microstructure and category-selective BOLD response in PrC and HC, respectively. These striking three-way associations highlight functionally dissociable, structurally instantiated MTL neurocognitive networks for complex face and scene perception. - See more at: http://elifesciences.org/content/early/2015/08/29/eLife.07902#sthash.QjrpdgYs.dpuf

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff University Brain Research Imaging Centre (CUBRIC)
Neuroscience and Mental Health Research Institute (NMHRI)
Psychology
Systems Immunity Research Institute (SIURI)
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher: eLife Science Publications
ISSN: 2050-084X
Funders: Medical Research Council
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 28 August 2015
Last Modified: 27 Mar 2019 16:26
URI: http://orca.cf.ac.uk/id/eprint/76851

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