• Binge Eating Disorder (BED) has been fairly recently introduced into the Diagnostic and Statistical Manual 5 psychiatric classification and its severity criteria are still not well established.
• Moreover, it remains unclear whether BED is associated with greater metabolic severity or more somatic comorbidities, especially in obesity.
• Improved BED severity staging could lead to a better definition of management strategies and , therefore, facilitate screening and care.

The investigators' hypothesis is that an improved assessment of the impulsivity-compulsivity spectrum, emotional regulation, attentional impairment and somatic or psychiatric comorbidities will result in a better distinction between the severe form of BED (e.g., highly impulsive and somatically complicated) from milder form (e.g., more compulsive and less somatically complicated).

Inclusion Criteria:

• men or women aged 1
• participants eligible for bariatric surgery (BMI>40, or BMI>35 with severe comorbidities)
• participants scheduled for medical evaluation and treatment of obesity at the IUCPQ Obesity Clinic (BMI≥30)
• participants scheduled for evaluation and treatment of BED at the CEPIA with obesity (BMI≥30)
• for the group with BED: positive BEDS-7 screen and Binge Eating Scale score >16;
• for the control group: have a negative BEDS-7 screen and Binge Eating Scale score<12
• be fluent in French and able to consent.

Exclusion criteria :

• participants with severe neurological disorder and/or major neurocognitive deficits;
• participants with previous bariatric surgery or with introduction or change of anti-obesity medication (liraglutide or naltrexone/bupropion) in the previous 3 months;
• participants who cannot read and/or understand French;
• participants under guardianship or curatorship;
• participants already included in a study with a conflict of interest with this study;
• inability to use a computer or iPad;
• inability to access an Internet connection or to visit one of the inclusion sites.

Secondary exclusion criteria:

• participants with a discordance between BEDS-7 (positive) and Binge Eating Scale (score ≤ 16) results found secondarily
• participants who did not participate in part of the assessments (e.g., self-questionnaires or neurocognitive tests) and participants with a rate of missing data>10%.

Patients will be recruited from 2 sites: 1) the Institut Universitaire de Cardiologie et Pneumologie de Québec (IUCPQ; pre-bariatric surgery consultation and obesity care consultation); 2) the Centre d'Expertise Poids, Image et Alimentation (CEPIA), a clinic of the Institute of Nutrition and Functional Foods of Laval University (eatinig disorders consultation). The pre-selection of participants will be done using available data and screening tests deployed through the management frameworks already in place at the two sites. If needed, patients will be recruited by advertisement.