Pilot Study on the Validity of the Metacognitive Hub Model of Craving in Bulimia Nervosa (BN) and Binge Eating Disorders (BED)
NCT ID: NCT05879679
Last Updated: 2024-06-20
Study Results
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Basic Information
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RECRUITING
60 participants
OBSERVATIONAL
2024-01-08
2025-10-31
Brief Summary
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The "metacognitive hub model", a conceptual, experimental and clinical approach to craving, proposes that craving should be considered as the embedded consequence of the interaction between three components (the reflexive, automatic and interoceptive systems), each of which has an implicit and explicit element. This model links the three components by suggesting that metacognitive abilities, the ability to understand one's own cognitive functioning, may be a skill of individuals that allows them to make the three sub-components explicit or not.
To date, the conception of eating disorders is increasingly similar to that of addictive disorders. Indeed, there is growing evidence that the symptomatology of bulimia nervosa and binge eating disorder can be considered in part as an "food addiction" and would fit the diagnostic criteria of an addictive disorder. Bulimia nervosa is an eating disorder (DSM 5) characterized by a cycle of binge eating and compensatory behaviors such as self-induced vomiting that tend to negate or compensate for the effects of the binge eating. Binge eating disorder (DSM 5) is characterized by a cycle of binge eating, but without the compensatory behaviors seen in bulimia nervosa. In addition, there are common neurological aspects as well as similar cognitions between these eating disorders and addictive disorders. Given the importance of craving in addictive pathology, it seems essential to address this issue in bulimia nervosa and binge eating disorder. The cognitive difficulties of patients with bulimia nervosa and binge eating disorder, which are close to the difficulties observed in patients with addictive behaviors, suggest that the "metacognitive hub model" could provide a clear and measurable theoretical framework of the different dimensions of craving.
The overall objective of this project is to explore the relationship between the level of craving induced by food picture exposure and the level of impairment of the reflexive, automatic, interoceptive, and metacognitive systems in women with bulimia nervosa and binge eating disorder and to compare these impairments according to the nature of the eating disorder (i.e., binge eating versus bulimia nervosa).
Our hypotheses are:
1. the induction of food craving will affect the reflexive, automatic, and interoceptive systems of patients with bulimia nervosa and binge eating disorder.
2. the magnitude of the effect of food craving induction on implicit craving and explicit craving will be modulated by the participants' metacognitive abilities.
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Detailed Description
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Conditions
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Study Design
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CASE_ONLY
CROSS_SECTIONAL
Study Groups
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Binge Eating Disorder
Participants with a binge eating disorder (DSM-5 criteria)
Food craving induction
Standardized craving induction procedure will be used, based on exposure to food-related images (https://www.lippc2s.fr/food-cal-pictures/). Craving intensity will be measured by visual analogic scale before and after the induction sequence.
Bulimia Nervosa
Participants with a bulimia nervosa (DSM-5 criteria)
Food craving induction
Standardized craving induction procedure will be used, based on exposure to food-related images (https://www.lippc2s.fr/food-cal-pictures/). Craving intensity will be measured by visual analogic scale before and after the induction sequence.
Interventions
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Food craving induction
Standardized craving induction procedure will be used, based on exposure to food-related images (https://www.lippc2s.fr/food-cal-pictures/). Craving intensity will be measured by visual analogic scale before and after the induction sequence.
Eligibility Criteria
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Inclusion Criteria
* fluent in french
* able to consent
Exclusion Criteria
* pregnancy or breastfeeding
18 Years
65 Years
FEMALE
No
Sponsors
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Université de Nantes
OTHER
Centre d'expertise Poids, Image et Alimentation (CEPIA)
UNKNOWN
Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Quebec
OTHER
Laval University
OTHER
Responsible Party
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Sylvain Iceta
Associate professor
Principal Investigators
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Sylvain Iceta, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Fondation IUCPQ
Valentin Flaudias, Psy, PhD
Role: STUDY_CHAIR
Université de Nantes
Locations
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Centre d'expertise Poids, Image et Alimentation (CEPIA)
Québec, , Canada
IUCPQ
Québec, , Canada
Université de Nantes
Nantes, , France
Countries
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Central Contacts
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Facility Contacts
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Catherine Bégin, PhD
Role: primary
sylvain Iceta
Role: primary
Valentin Flaudias, Psy, PhD
Role: primary
Other Identifiers
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2024-4019, 22336
Identifier Type: -
Identifier Source: org_study_id
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