Reference : Mood induced changes in the cortical processing of food images in bulimia nervosa
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
Social & behavioral sciences, psychology : Treatment & clinical psychology
Human health sciences : Psychiatry
Systems Biomedicine
http://hdl.handle.net/10993/44764
Mood induced changes in the cortical processing of food images in bulimia nervosa
English
Lutz, Annika mailto [University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS) >]
Dierolf, Angelika []
van Dyck, Zoé mailto [University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS) >]
Georgii, Claudio []
Schnepper, Rebekka []
Blechert, Jens []
Vögele, Claus mailto [University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS) >]
2020
Addictive Behaviors
Elsevier
New Directions in the Evaluation and Rehabilitation of Neurocognitive Processes in Addictive Disorders
Yes (verified by ORBilu)
International
0306-4603
Oxford
United Kingdom
[en] Bulimia nervosa ; Emotional eating ; EEG-ERP ; P300 ; LPP ; Mood induction
[en] Background
Negative mood often triggers binge eating in bulimia nervosa (BN). We investigated motivational salience as a possible underlying mechanism using event-related potentials (ERPs) as indicators of motivated attention allocation (P300) and sustained processing (LPP).
Methods
We collected ERPs (P300: 350–400 ms; LPP: 600–1000 ms) from 21 women with full-syndrome or partially remitted BN and 21 healthy women (HC), matched for age and body mass index. Idiosyncratic negative and neutral situations were used to induce corresponding mood states (counterbalanced), before participants viewed images of high- and low-calorie foods and neutral objects, and provided ratings for pleasantness and desire to eat.
Results
P300 was larger for foods than objects; LPP was largest for high-calorie foods, followed by low-calorie foods, then objects. The BN group showed an increased desire to eat high-calorie foods under negative mood and stronger mood induction effects on ERPs than the HC group, with generally reduced P300 and a small increase in LPP for high-calorie foods. Effects were limited to circumscribed electrode positions. Exploratory analyses showed clearer effects when comparing high vs. low emotional eaters.
Conclusion
We argue that negative mood decreased the availability of cognitive resources (decreased P300) in BN, thereby facilitating disinhibition and food cravings (increased desire-to-eat ratings). Increased sustained processing might be linked to emotional eating tendencies rather than BN pathology per se, and reflect approach motivation, conflict, or regulatory processes. Negative mood appears to induce complex changes in food image processing, whose understanding may contribute to the development of tailored interventions in the future.
Department for Behavioural and Cognitive Sciences
Fonds National de la Recherche - FnR
Emotional, Restrained and Bulimic Eating in Lab and Daily Life
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/44764
10.1016/j.addbeh.2020.106712
https://www.sciencedirect.com/science/article/pii/S030646032030842X
FnR ; FNR8371546 > Claus Vögele > EMO-EAT > Emotional, Restrained and Bulimic Eating in Lab and Daily Life > 15/03/2015 > 14/03/2018 > 2014

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