Lack of Brain Asymmetry in the Alpha Band During the Observation of Object Grasping in Reality Versus on Screen
Andreu Sánchez, Celia (Universitat Autònoma de Barcelona. Institut de Neurociències)
Martín-Pascual, Miguel Ángel (Universitat Autònoma de Barcelona. Departament de Comunicació Audiovisual i Publicitat)
Gruart, Agnès (Universidad Pablo de Olavide)
Delgado-García, José María (Universidad Pablo de Olavide)

Data:	2024
Resum:	The way audiovisuals are perceived is not completely understood. Previous works have shown that attention increases when watching audiovisuals compared with looking at real events, but depending on the editing style, and the interpreter, the understanding of the content may be different. The study of brain asymmetries in this context aims to identify potential lateralizations in audiovisual perception. Previous studies have proven that seeing others grasp objects has a contralateral impact on somatosensory areas (C3 and C4) in the alpha band (8-12 Hz). In this work, we investigated whether brain activity could be asymmetrical in that band when looking at real grasping compared with watching grasping on a screen, and whether media expertise would be a determinant in this regard and presented the same narrative content both through live performance and as a movie to 40 participants (half of them media professionals) while recording their electroencephalography (EEG) activity. We conclude that the asymmetry in the alpha band in the somatosensory cortex is not affected by the medium through which the grasping actions are presented, that is, in reality or on screen. We also conclude that media expertise does not impact this asymmetry.
Ajuts:	Agencia Estatal de Investigación PID2021-122446NB-I00
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Brain asymmetry ; Media professionals ; Mu rhythm ; Grasping actions ; Real performance vs. on screen
Publicat a:	Symmetry, Vol. 16, Núm. 11 (November 2024) , ISSN 2073-8994

DOI: 10.3390/sym16111534

8 p, 559.6 KB

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