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  4. Seeing is believing: Early perceptual brain processes are modified by social feedback
 
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Seeing is believing: Early perceptual brain processes are modified by social feedback

Auteur(s)
Zanesco, Julie 
Institut des sciences du langage et de la communication 
Tipura, Eda
Posada, Andres
Clément, Fabrice 
Institut des sciences du langage et de la communication 
Pegna, Alan J.
Date de parution
2018-8-23
In
Social Neuroscience
No
in press
De la page
1
A la page
11
Revu par les pairs
1
Mots-clés
  • Conformism
  • perception
  • belief
  • influence
  • in-group
  • Conformism

  • perception

  • belief

  • influence

  • in-group

Résumé
Over 6 decades ago, experimental evidence from social psychology revealed that individuals could alter their responses in perceptual judgement tasks if they differed from the prevailing view emitted by a group of peers. Responses were thus modulated to agree with the opinion of the social group. An open question remains whether such changes actually reflect modified perception, or whether they are simply the result of a feigned agreement, indicating submissive acceptance. In this study, we addressed this topic by performing a perceptual task involving the assessment of ambiguous and distinct stimuli. Participants were asked to judge the colours of squares, before, and after receiving feedback for their response. In order to pinpoint the moment in time that social feedback affected neural processing, ERP components to ambiguous stimuli were compared before and after participants received supposed social feedback that agreed with, or disputed their response. The comparison revealed the presence of differences beginning already 100ms after stimulus presentation (on the P1 and N1 components) despite otherwise identical stimuli. The modulation of these early components, normally thought to be dependent on low-level visual features, demonstrate that social pressure tangibly modifies early perceptual brain processes.
Identifiants
https://libra.unine.ch/handle/123456789/26582
_
10.1080/17470919.2018.1511470
Type de publication
journal article
Dossier(s) à télécharger
 main article: Seeing is believing Early perceptual brain processes are modified by social feedback.pdf (2.15 MB)
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