Corticospinal Excitability during a Perspective Taking Task as Measured by TMS-Induced Motor Evoked Potentials

Autor: Elizabeth Murray, Janet Brenya, Katherine Chavarria, Karen J. Kelly, Anjel Fierst, Nathira Ahmad, Caroline Anton, Layla Shaffer, Kairavi Kapila, Logan Driever, Kayla Weaver, Caroline Dial, Maya Crawford, Iso Hartman, Tommy Infantino, Fiona Butler, Abigail Straus, Shakeera L. Walker, Brianna Balugas, Mathew Pardillo, Briana Goncalves, Julian Paul Keenan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Brain Sciences, Vol 11, Iss 4, p 513 (2021)
Druh dokumentu: article
ISSN: 11040513
2076-3425
DOI: 10.3390/brainsci11040513
Popis: Only by understanding the ability to take a third-person perspective can we begin to elucidate the neural processes responsible for one’s inimitable conscious experience. The current study examined differences in hemispheric laterality during a first-person perspective (1PP) and third-person perspective (3PP) taking task, using transcranial magnetic stimulation (TMS). Participants were asked to take either the 1PP or 3PP when identifying the number of spheres in a virtual scene. During this task, single-pulse TMS was delivered to the motor cortex of both the left and right hemispheres of 10 healthy volunteers. Measures of TMS-induced motor-evoked potentials (MEPs) of the contralateral abductor pollicis brevis (APB) were employed as an indicator of lateralized cortical activation. The data suggest that the right hemisphere is more important in discriminating between 1PP and 3PP. These data add a novel method for determining perspective taking and add to the literature supporting the role of the right hemisphere in meta representation.
Databáze: Directory of Open Access Journals
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