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  Dissociating the semantic function of two neighbouring subregions in the left lateral anterior temporal lobe

Sanjuán, A., Hope, T. M. H., Jones, O. P., Prejawa, S., Oberhuber, M., Guerin, J., et al. (2015). Dissociating the semantic function of two neighbouring subregions in the left lateral anterior temporal lobe. Neuropsychologia, 76, 153-162. doi:10.1016/j.neuropsychologia.2014.12.004.

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 Creators:
Sanjuán, Ana1, 2, Author
Hope, Thomas M. H.1, Author
Jones, Oiwi Parker1, 3, Author
Prejawa, Suse1, Author           
Oberhuber, Marion1, Author
Guerin, Julie1, Author
Seghier, Mohamed L.1, Author
Green, David W.4, Author
Price, Cathy J.1, Author
Affiliations:
1Wellcome Trust Centre for Neuroimaging, University College London, United Kingdom, ou_persistent22              
2Neuropsychology and Functional Imaging Group, Jaume I University, Castellón de la Plana, Spain, ou_persistent22              
3Wolfson College, University of Oxford, United Kingdom, ou_persistent22              
4Department of Experimental Psychology, Faculty of Brain Sciences, University College London, United Kingdom, ou_persistent22              

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Free keywords: fMRI; Semantic memory; Anterior temporal lobe; Naming
 Abstract: We used fMRI in 35 healthy participants to investigate how two neighbouring subregions in the lateral anterior temporal lobe (LATL) contribute to semantic matching and object naming. Four different levels of processing were considered: (A) recognition of the object concepts; (B) search for semantic associations related to object stimuli; (C) retrieval of semantic concepts of interest; and (D) retrieval of stimulus specific concepts as required for naming. During semantic association matching on picture stimuli or heard object names, we found that activation in both subregions was higher when the objects were semantically related (mug–kettle) than unrelated (car–teapot). This is consistent with both LATL subregions playing a role in (C), the successful retrieval of amodal semantic concepts. In addition, one subregion was more activated for object naming than matching semantically related objects, consistent with (D), the retrieval of a specific concept for naming. We discuss the implications of these novel findings for cognitive models of semantic processing and left anterior temporal lobe function.

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Language(s): eng - English
 Dates: 2014-11-142014-07-232014-12-042014-12-102015-09
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.neuropsychologia.2014.12.004
PMID: 25496810
PMC: PMC4582806
Other: Epub 2014
 Degree: -

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Title: Neuropsychologia
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 76 Sequence Number: - Start / End Page: 153 - 162 Identifier: ISSN: 0028-3932
CoNE: https://pure.mpg.de/cone/journals/resource/954925428258