Ewww-Investigating the neural basis of disgust in response to naturalistic and pictorial nauseating stimuli.
EEG
asymmetry
disgust
lateralization
right hemisphere hypothesis
Journal
Frontiers in psychiatry
ISSN: 1664-0640
Titre abrégé: Front Psychiatry
Pays: Switzerland
ID NLM: 101545006
Informations de publication
Date de publication:
2022
2022
Historique:
received:
26
09
2022
accepted:
22
12
2022
entrez:
9
2
2023
pubmed:
10
2
2023
medline:
10
2
2023
Statut:
epublish
Résumé
Emotion induction in psychological and neuroscientific research has been mostly done by presenting participants with picture or film material. However, it is debatable whether this passive approach to emotion induction results in an affective state comparable to real-life emotions, and if the neural correlates of emotion processing are ecologically valid. To investigate the appropriateness of pictures for the induction of emotions, we presented 56 participants in a within-subjects design with naturalistic disgusting and neutral stimuli as well as with pictures of said stimulus material while recording continuous EEG data. We calculated asymmetry indices (AIs) for alpha power as an index of emotion processing and emotion regulation at the F3/4, F5/6, F7/8, and O1/2 electrode pairs. Participants reported higher disgust ratings for disgusting naturalistic compared to disgusting pictorial stimuli. Investigating changes in the EEG signal in participants with a pronounced disgust response (
Identifiants
pubmed: 36756635
doi: 10.3389/fpsyt.2022.1054224
pmc: PMC9899807
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1054224Informations de copyright
Copyright © 2023 Berretz, Dutschke, Leonard and Packheiser.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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