Evidence map›Paper›PMID 36248688›Full record

ArticleFrontiers in human neuroscience2022

HD-tDCS of primary and higher-order motor cortex affects action word processing.

Karim Johari, Nicholas Riccardi, Svetlana Malyutina, Mirage Modi, Rutvik H Desai

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Article in Frontiers in human neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Karim JohariHuman Neurophysiology & Neuromodulation Lab, Department of Communication Sciences and Disorders, Louisiana State University, Baton Rouge, LA, United States.
Nicholas RiccardiDepartment of Psychology, University of South Carolina, Columbia, SC, United States.
Svetlana MalyutinaCenter for Language and Brain, HSE University, Moscow, Russia.
Mirage ModiWeinberg College of Arts and Sciences, Northwestern University, Evanston, IL, United States.
Rutvik H DesaiDepartment of Psychology, University of South Carolina, Columbia, SC, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The contribution of action-perception systems of the brain to lexical semantics remains controversial. Here, we used high-definition transcranial direct current stimulation (HD-tDCS) in healthy adults to examine the role of primary (left hand motor area; HMA) and higher-order (left anterior inferior parietal lobe; aIPL) action areas in action-related word processing (action verbs and manipulable nouns) compared to non-action-related control words (non-action verbs and non-manipulable nouns). We investigated stimulation-related effects at three levels of semantic processing: subliminal, implicit, and explicit. Broadly, we found that stimulation of HMA and aIPL resulted in relative facilitation of action-related language processing compared to non-action. HMA stimulation facilitated action verb processing in subliminal and implicit task contexts, suggesting that HMA helps represent action verbs even in semantically shallow tasks. HMA stimulation also facilitated manipulable noun comprehension in an explicit semantic task, suggesting that HMA contributes to manipulable noun comprehension when semantic demands are high. aIPL stimulation facilitated both manipulable noun and action verb processing during an implicit task. We suggest that both HMA and aIPL play a functional role in action semantics. HMA plays a general role in the semantics of actions and manipulable objects, while aIPL is important only when visuo-motor coordination is required for the action.

Indexed as

embodied cognitionHD-tDCSinferior parietal lobelexical semanticsmotor cortexnounsverbs

Identifiers

PMID36248688
PMCPMC9556667

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.