Cited by 398Neurobiology of Language and BilingualismTranscranial Magnetic Stimulation StudiesDementia and Cognitive Impairment Research

Anterior temporal lobes mediate semantic representation: Mimicking semantic dementia by using rTMS in normal participants

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Pobric, Gorana, Jefferies, Elizabeth, Ralph, Matthew A. Lambon·2007·Proceedings of the National Academy of Sciences

Abstract

Studies of semantic dementia and PET neuroimaging investigations suggest that the anterior temporal lobes (ATL) are a critical substrate for semantic representation. In stark contrast, classical neurological models of comprehension do not include ATL, and likewise functional MRI studies often fail to show activations in the ATL, reinforcing the classical view. Using a novel application of low-frequency, repetitive transcranial magnetic stimulation (rTMS) over the ATL, we demonstrate that the behavioral pattern of semantic dementia can be mirrored in neurologically intact participants: Specifically, we show that temporary disruption to neural processing in the ATL produces a selective semantic impairment leading to significant slowing in both picture naming and word comprehension but not to other equally demanding, nonsemantic cognitive tasks.

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  • The anterior temporal lobe supports language as a heteromodal association area involved in concept representation, and the right anterior temporal lobe has been implicated in representing abstract social concepts.

    “The ATL supports language as a heteromodal association area involved in the representation of concepts (Lambon Ralph et al. 2009; Pobric et al. 2007; Rogers et al. 2004) and the right ATL has been implicated in the representation of abstract social concepts (e.g., Zahn et al. 2009).”

    From The brain basis of emotion: a meta-analytic review (2012) · cites this paper as Pobric et al. 2007

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Authors
Pobric, G., Jefferies, E., & Ralph, M. A. L.
Affiliations
University of Manchester (GB)
Venue
Proceedings of the National Academy of Sciences
Published
2007-12-11
Volume
104
Issue
50
Pages
20137-20141
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2169670326
Cited by
398
References
43
Citations by year
2026: 15 · 2025: 18 · 2024: 11 · 2023: 15 · 2022: 22 · 2021: 22 · 2020: 27 · 2019: 31 · 2018: 22 · 2017: 26 · 2016: 28 · 2015: 28 · 2014: 21 · 2013: 21 · 2012: 25
FWCI
7.35
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion, other-oa)
Funders
Wellcome Trust (078734/Z05/Z)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
anterior temporal lobe, semantic representation, semantic dementia, repetitive transcranial magnetic stimulation, semantic impairment, picture naming, word comprehension, semantic processing
MeSH terms
Adult, Dementia, Female, Health, Humans, Male, Semantics, Temporal Lobe, Transcranial Magnetic Stimulation

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