Hartmann, Matthias; Falconer, Caroline J; Kaelin-Lang, Alain; Müri, René M; Mast, Fred W (2022). Imagined paralysis reduces motor cortex excitability. Psychophysiology, 59(10), e14069. Wiley-Blackwell 10.1111/psyp.14069
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Psychophysiology_-_2022_-_Hartmann_-_Imagined_paralysis_reduces_motor_cortex_excitability.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (295kB) | Preview |
Mental imagery is a powerful capability that engages similar neurophysiological processes that underlie real sensory and motor experiences. Previous studies show that motor cortical excitability can increase during mental imagery of actions. In this study, we focused on possible inhibitory effects of mental imagery on motor functions. We assessed whether imagined arm paralysis modulates motor cortical excitability in healthy participants, as measured by motor evoked potentials (MEPs) of the hand induced by near-threshold transcranial magnetic stimulation (TMS) over the primary motor cortex hand area. We found lower MEP amplitudes during imagined arm paralysis when compared to imagined leg paralysis or baseline stimulation without paralysis imagery. These results show that purely imagined bodily constraints can selectively inhibit basic motor corticospinal functions. The results are discussed in the context of motoric embodiment/disembodiment.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
07 Faculty of Human Sciences > Institute of Psychology > Cognitive Psychology, Perception and Methodology 04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology 04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DCR Unit Sahli Building > Forschungsgruppe Neurologie |
UniBE Contributor: |
Maalouli-Hartmann, Matthias, Kaelin, Alain, Müri, René Martin, Mast, Fred |
Subjects: |
100 Philosophy > 150 Psychology 600 Technology > 610 Medicine & health |
ISSN: |
0048-5772 |
Publisher: |
Wiley-Blackwell |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
11 Apr 2022 09:11 |
Last Modified: |
05 Dec 2022 16:18 |
Publisher DOI: |
10.1111/psyp.14069 |
PubMed ID: |
35393640 |
Uncontrolled Keywords: |
MEP amplitude TMS cortical excitability mental imagery motor evoked potential (MEP) paralysis |
BORIS DOI: |
10.48350/169184 |
URI: |
https://boris.unibe.ch/id/eprint/169184 |
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