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  Online transcranial magnetic stimulation reveals differential effects of transitivity in left inferior parietal cortex but not premotor cortex during action naming

Ward, E., Brownsett, S. L., McMahon, K. L., Hartwigsen, G., Mascelloni, M., & de Zubicaray, G. I. (2022). Online transcranial magnetic stimulation reveals differential effects of transitivity in left inferior parietal cortex but not premotor cortex during action naming. Neuropsychologia, 174: 108339. doi:10.1016/j.neuropsychologia.2022.108339.

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 Creators:
Ward, Emma1, Author
Brownsett, Sonia L.E.2, 3, Author
McMahon, Katie L.4, 5, Author
Hartwigsen, Gesa6, Author           
Mascelloni, Matteo1, Author
de Zubicaray, Greig I.1, Author
Affiliations:
1School of Psychology and Counselling, Faculty of Health, Queensland University of Technology, Brisbane, Australia, ou_persistent22              
2School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia, ou_persistent22              
3NHMRC Centre of Research Excellence in Aphasia Recovery and Rehabilitation, Melbourne, Australia, ou_persistent22              
4School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia, ou_persistent22              
5Herston Imaging Research Facility (HIRF), The Royal Brisbane and Woman's Hospital, Brisbane, Australia, ou_persistent22              
6Lise Meitner Research Group Cognition and Plasticity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_3025665              

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Free keywords: Transcranial magnetic stimulation; Spoken word production; Verb transitivity; Premotor cortex; Intraparietal sulcus
 Abstract: Accumulating evidence indicates two cortical regions, the left ventral premotor cortex (PMv) and left intraparietal sulcus (IPS), are involved in spoken verb production. Some evidence also indicates these regions may be differentially engaged by transitive (i.e., object-oriented) versus intransitive actions. We explored the role of these regions during action picture naming in two experiments, each employing high frequency (10 Hz) online repetitive Transcranial Magnetic Stimulation (rTMS) in 20 participants. In Experiment 1, participants named intransitive action pictures (e.g., LAUGH) accompanied by active and sham rTMS to the left PMv, left IPS, and right superior parietal lobule (SPL; control site). Application of rTMS to PMv resulted in slower naming latencies compared to sham and control site stimulation, whereas stimulation of the IPS did not result in any significant effects. Experiment 2 employed active and sham rTMS identical to Experiment 1 with transitive action pictures (e.g., PUSH). Stimulation of both regions induced changes in naming latencies compared to sham and control site stimulation, with rTMS applied to PMv slowing responses and IPS stimulation facilitating them. Surprisingly, stimulation of the right SPL control site also slowed naming compared to sham across both Experiments. Overall, these findings indicate different roles for PMv and IPS during action picture naming. Specifically, the divergent effects of PMv and IPS stimulation in the transitive action naming task indicate different processes likely operate in the two regions during verb production. Involvement of the right SPL across both transitive and intransitive action naming might reflect visuospatial or general attention mechanisms rather than language processes per se.

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Language(s): eng - English
 Dates: 2022-07-192022-02-142022-07-202022-07-312022-09-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.neuropsychologia.2022.108339
Other: online ahead of print
PMID: 35921869
 Degree: -

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Title: Neuropsychologia
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 174 Sequence Number: 108339 Start / End Page: - Identifier: ISSN: 0028-3932
CoNE: https://pure.mpg.de/cone/journals/resource/954925428258