In EDS ansehen

The contribution of body perception to self-identity: an event-related potential study: an event-related potential study

Gespeichert in:
Bibliographische Detailangaben
Titel: The contribution of body perception to self-identity: an event-related potential study: an event-related potential study
Autoren: Juanzhi Lu, Lars Riecke, Brenda E Ryan, Beatrice de Gelder
Quelle: Soc Cogn Affect Neurosci
Verlagsinformationen: Oxford University Press (OUP), 2025.
Publikationsjahr: 2025
Schlagwörter: Male, Adult, Electroencephalography/methods, Brain/physiology, Evoked Potentials/physiology, Young Adult, event-related potential, Body Image, Reaction Time, Humans, Evoked Potentials, Visual Perception/physiology, face, Virtual Reality, N2, Brain, self-identity, Original Research – Neuroscience, Electroencephalography, body, Self Concept, Reaction Time/physiology, Visual Perception, Female, Photic Stimulation, Photic Stimulation/methods
Beschreibung: This study used electroencephalography (EEG) and personalized avatars to investigate the neural mechanisms underlying personal identity perception. Compound avatar images combining participants’ own faces and bodies, as well as those of others, were generated from photographs. Participants underwent an embodiment training for each avatar type in a virtual reality environment, where they controlled the avatar’s actions during physical exercise tasks. Subjective assessments by participants confirmed a stronger identification with avatars representing their own identity compared to those representing others. Analysis of event-related potentials (ERPs) evoked by viewing the avatar revealed that avatars representing the participants’ self-identity elicited weaker N2 and P1 responses compared to avatars representing other identities. No significant effects on N170 responses were observed. Control conditions utilizing avatars with modified body characteristics confirmed that the reduction in N2 amplitude was specifically related to identity perception rather than variations in visual body size. These findings suggest that the perception of self-identity occurs rapidly, within ∼200 ms, indicating the integration of visual face and body information into identity representation at an early stage.
Publikationsart: Article
Other literature type
Sprache: English
ISSN: 1749-5024
1749-5016
DOI: 10.1093/scan/nsaf020
Zugangs-URL: https://pubmed.ncbi.nlm.nih.gov/40036617
Rights: CC BY
URL: http://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Dokumentencode: edsair.doi.dedup.....96bfc880e60be0ac9b49f69db566984e
Datenbank: OpenAIRE
Beschreibung
Abstract:This study used electroencephalography (EEG) and personalized avatars to investigate the neural mechanisms underlying personal identity perception. Compound avatar images combining participants’ own faces and bodies, as well as those of others, were generated from photographs. Participants underwent an embodiment training for each avatar type in a virtual reality environment, where they controlled the avatar’s actions during physical exercise tasks. Subjective assessments by participants confirmed a stronger identification with avatars representing their own identity compared to those representing others. Analysis of event-related potentials (ERPs) evoked by viewing the avatar revealed that avatars representing the participants’ self-identity elicited weaker N2 and P1 responses compared to avatars representing other identities. No significant effects on N170 responses were observed. Control conditions utilizing avatars with modified body characteristics confirmed that the reduction in N2 amplitude was specifically related to identity perception rather than variations in visual body size. These findings suggest that the perception of self-identity occurs rapidly, within ∼200 ms, indicating the integration of visual face and body information into identity representation at an early stage.
ISSN:17495024
17495016
DOI:10.1093/scan/nsaf020