It is a matter of perspective: Attentional focus rather than dietary restraint drives brain responses to food stimuli.
Attentional focus
Calorie content
Dietary restraint
Food
MVPA
Palatability
fMRI
Journal
NeuroImage
ISSN: 1095-9572
Titre abrégé: Neuroimage
Pays: United States
ID NLM: 9215515
Informations de publication
Date de publication:
06 2023
06 2023
Historique:
received:
29
07
2022
revised:
16
03
2023
accepted:
30
03
2023
medline:
2
5
2023
pubmed:
3
4
2023
entrez:
2
4
2023
Statut:
ppublish
Résumé
Brain responses to food are thought to reflect food's rewarding value and to fluctuate with dietary restraint. We propose that brain responses to food are dynamic and depend on attentional focus. Food pictures (high-caloric/low-caloric, palatable/unpalatable) were presented during fMRI-scanning, while attentional focus (hedonic/health/neutral) was induced in 52 female participants varying in dietary restraint. The level of brain activity was hardly different between palatable versus unpalatable foods or high-caloric versus low-caloric foods. Activity in several brain regions was higher in hedonic than in health or neutral attentional focus (p < .05, FWE-corrected). Palatability and calorie content could be decoded from multi-voxel activity patterns (p < .05, FDR-corrected). Dietary restraint did not significantly influence brain responses to food. So, level of brain activity in response to food stimuli depends on attentional focus, and may reflect salience, not reward value. Palatability and calorie content are reflected in patterns of brain activity.
Identifiants
pubmed: 37004828
pii: S1053-8119(23)00222-7
doi: 10.1016/j.neuroimage.2023.120076
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
120076Informations de copyright
Copyright © 2023. Published by Elsevier Inc.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare no competing financial interest.