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The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour

Recent studies have suggested that circuits associated with response conflict and response inhibition are strongly implicated in deception. Using single-pulse transcranial magnetic stimulation (TMS), we examined whether conflict between competing responses in primary motor cortex (M1) can be used fo...

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Detalles Bibliográficos
Autores principales: Hadar, Aviad A., Makris, Stergios, Yarrow, Kielan N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5393746/
http://dx.doi.org/10.1068/ic277
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author Hadar, Aviad A.
Makris, Stergios
Yarrow, Kielan N.
author_facet Hadar, Aviad A.
Makris, Stergios
Yarrow, Kielan N.
author_sort Hadar, Aviad A.
collection PubMed
description Recent studies have suggested that circuits associated with response conflict and response inhibition are strongly implicated in deception. Using single-pulse transcranial magnetic stimulation (TMS), we examined whether conflict between competing responses in primary motor cortex (M1) can be used for discriminating between intentionally false and true facial recognition. Participants used little finger and thumb key-presses to lie or tell the truth regarding their familiarity with a series of famous and nonfamous faces. Single-pulse TMS was administered to M1 at three intervals prior to response execution in order to evoke motor evoked potentials (MEPs) in both Abductor Digiti Minimi (ADM) and first dorsal interosseous (FDI) of the right hand. As predicted, we found that the MEP of the nonresponding digit was greater than the MEP of the responding digit when participants prepared to engage in deception, while a mirror-reversed pattern was observed for truth telling. This effect did not interact with the stimulation interval suggesting consistent activation of the motor plan representing the truth throughout the response preparation process. We discuss these results with reference to models of response selection and procedures for the detection of deception.
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spelling pubmed-53937462017-04-24 The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour Hadar, Aviad A. Makris, Stergios Yarrow, Kielan N. Iperception Article Recent studies have suggested that circuits associated with response conflict and response inhibition are strongly implicated in deception. Using single-pulse transcranial magnetic stimulation (TMS), we examined whether conflict between competing responses in primary motor cortex (M1) can be used for discriminating between intentionally false and true facial recognition. Participants used little finger and thumb key-presses to lie or tell the truth regarding their familiarity with a series of famous and nonfamous faces. Single-pulse TMS was administered to M1 at three intervals prior to response execution in order to evoke motor evoked potentials (MEPs) in both Abductor Digiti Minimi (ADM) and first dorsal interosseous (FDI) of the right hand. As predicted, we found that the MEP of the nonresponding digit was greater than the MEP of the responding digit when participants prepared to engage in deception, while a mirror-reversed pattern was observed for truth telling. This effect did not interact with the stimulation interval suggesting consistent activation of the motor plan representing the truth throughout the response preparation process. We discuss these results with reference to models of response selection and procedures for the detection of deception. SAGE Publications 2011-05-01 2011-05 /pmc/articles/PMC5393746/ http://dx.doi.org/10.1068/ic277 Text en © 2011 SAGE Publications Ltd. Manuscript content on this site is licensed under Creative Commons Licenses http://creativecommons.org/licenses/by-nc-nd/3.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License (http://www.creativecommons.org/licenses/by-nc-nd/3.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (http://www.uk.sagepub.com/aboutus/openaccess.htm).
spellingShingle Article
Hadar, Aviad A.
Makris, Stergios
Yarrow, Kielan N.
The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title_full The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title_fullStr The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title_full_unstemmed The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title_short The Truth-Telling Motor Cortex: Response Competition in M1 Discloses Deceptive Behaviour
title_sort truth-telling motor cortex: response competition in m1 discloses deceptive behaviour
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5393746/
http://dx.doi.org/10.1068/ic277
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