Preprint Brief Report Version 1 Preserved in Portico This version is not peer-reviewed

Corticospinal Excitability During a Perspective Taking Task as Measured by TMS-induced Motor Evoked Potentials

Version 1 : Received: 6 April 2021 / Approved: 7 April 2021 / Online: 7 April 2021 (11:35:01 CEST)

How to cite: Brenya, J.; Chavarria, K.; Murray, E.; Kelly, K.; Friest, A.; Ahmad, N.; Anton, C.; Shaffer, L.; Kapila, K.; Driever, L.; Weaver, K.; Dial, C.; Crawford, M.; Hartman, I.; Infantino, T.; Butler, F.; Straus, A.; Walker, S.; Balugas, B.; Pardillo, M.; Goncalves, B.; Keenan, J. Corticospinal Excitability During a Perspective Taking Task as Measured by TMS-induced Motor Evoked Potentials. Preprints 2021, 2021040196 (doi: 10.20944/preprints202104.0196.v1). Brenya, J.; Chavarria, K.; Murray, E.; Kelly, K.; Friest, A.; Ahmad, N.; Anton, C.; Shaffer, L.; Kapila, K.; Driever, L.; Weaver, K.; Dial, C.; Crawford, M.; Hartman, I.; Infantino, T.; Butler, F.; Straus, A.; Walker, S.; Balugas, B.; Pardillo, M.; Goncalves, B.; Keenan, J. Corticospinal Excitability During a Perspective Taking Task as Measured by TMS-induced Motor Evoked Potentials. Preprints 2021, 2021040196 (doi: 10.20944/preprints202104.0196.v1).

Abstract

Only by understanding the ability to take 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, when 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.

Subject Areas

Perspective Taking; Self-Awareness; Self-Representation; Metarepresentation; Theory of Mind; Transcranial Magnetic Stimulation

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