Incentive Processing and Learning in Anorexia Nervosa and Bulimia Nervosa
Anorexia NervosaBulimia NervosaThe purpose of this study is to investigate areas of the brain responsible for 'liking', 'wanting', and learning in adults with eating disorders using brain imaging techniques, computer tasks, a test meal, and self-report questionnaires and interviews. The investigators will study changes in brain activity using a procedure called functional magnetic resonance imaging (fMRI). This study will include 252 women with an eating disorder (63 AN-restricting type (AN-R), 63 AN-binge eating/purging type (AN-BP), 63 bulimia nervosa (BN)) and 63 healthy controls (HC) aged 18-39. Aim 1: To examine neural differences in 'liking' and 'wanting' in ED relative to HC. Aim 2: To examine differences in instrumental learning for reward and punishment in ED relative to HC. Aim 3: To examine how 'liking' and 'wanting' drive instrumental learning in ED and predict clinical symptoms at baseline and 1 year later. Exploratory Aim: To explore the associations of dopamine function, as measured by neuromelanin MRI (NM-MRI), with ED diagnosis and brain response to 'liking', 'wanting', and learning.
Profiling the Dynamic of Binge Eating Disorder (PRODY-BED)
Binge-Eating DisorderEmotion Regulation3 moreThe goal of this observational study is to explore if different and specific profiles can be identified in adults with binge eating disorder (BED) depending on their additional eating pathology, emotion regulation and executive functions. The main questions it aims to answer are: Is there different and specific subgroups of patients with BED according to baseline profiles in emotion regulation, executive function and additional eating pathology (including restriction, chaotic eating, grazing and eating on external cues)? Are subgroups of individuals with BED (based on identified profiles) associated with outcome at end of treatment and follow-up? What is the trajectories in remission rates of specific symptom dimensions (eating disorder pathology, emotion regulation, executive function, and depressive symptoms) in individuals with BED and is there specific trajectory profiles in these dimensions? Is early changes in specific symptom dimensions (eating pathology, emotion regulation, executive function, or depression) associated with outcome of BED? Participants will be asked to fill in questionnaires before treatment as usual, 10 weeks into treatment, at end of treatment and at 6- and 12-month follow-up.
BABE(Body Appreciation and Better Eating), Add Some Self-compassion
Body ImageEating Behavior4 moreBody dissatisfaction is most common among girls in their teenage years and young adulthood, this is also around the time where the risk of developing binge eating disorder is the highest. Black/African American girls are more likely to engage in binge eating behaviors compared to their White American counterparts; however, they receive less help for eating issues. Further, increase rates of obesity in the Black/African American population may indicate that binge eating may be a bigger problem for this population than discussed. Therefore, the primary purpose of this randomized controlled pilot is to assess the feasibility of this pilot study to be used in a large scale fully-powered study. The secondary purpose of this study is to assess if two different nutrition and body image programs elicit positive outcomes among Black/African American teenage girls who indicate a desire to improve body image.
PROspective Longitudinal All-comer Inclusion Study in Eating Disorders
Anorexia NervosaBulimia Nervosa2 moreThe PROLED study is a prospective and longitudinal study of patients with Eating Disorders. Annual interviews and collection of biological samples are done, as well as during changes in disease course e.g. during hospitalization. Included are qualitative interviews, psychometric tests, questionnaires which are used to collect data on psychopathology. There is also collection of blood, urine and faeces.
Compuls-BED-Severity
Binge-Eating DisorderBinge 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).
Quality of Life in Binge Eating Disorder.
Binge-Eating DisorderQuality of LifeBinge Eating Disorder (BED) patients tend to report low quality of life (Qol). However, research is limited. Most research on Qol in BED include generic measures, rather than disease specific. Obesity is prevalent in BED, but contradicting evidence exists on the influence of obesity in BED.
Neurofeedback During Eating for Bulimia Nervosa
Bulimia NervosaThe purpose of this study is to examine the effects of noninvasive prefrontal cortex (PFC) neurofeedback during eating in women with bulimia nervosa (BN) using a wearable brain imaging device, functional near-infrared spectroscopy (fNIRS). The investigators will examine how this training may influence inhibitory control and BN symptoms.
Pre-therapeutic Validation of the Virtual Reality-based Exposure Scenario for CBT "ReVBED" for the...
Bulimia NervosaBinge-Eating DisorderFood craving is a major therapeutic issue in Eating Disorders with binge eating: the Bulimia Nervosa and the Binge Eating Disorder (BED). Food craving is linked to compulsive eating and its apprehension is currently based on classic Cognitive and Behavioural Therapies (CBT). However, it remains difficult to induce in therapy and a significant number of patients do not respond to classic CBTs. The development of exposure scenarios for CBT in virtual reality (VR) has allowed a gain in efficacy and in particular therapeutic effects lasting longer after treatment. Nevertheless, the stimuli used are often simple food visuals and insufficiently consider the many factors influencing food craving (physical, psychological, socio-environmental...) and VR immersion is still limited by the use of 3D laptops (fixed) rather than wireless headsets.
Feasibility of the ROADE Program
Bulimia NervosaAnorexia Nervosa2 moreOccupational therapy is uniquely poised to help address chronic Eating Disorders (EDs) because of our holistic approach to client care. The complex and serious nature of EDs spans so many areas of life and wellbeing, it requires an intervention strategy that addresses the whole person across mental, physical, social, and spiritual realms. Unfortunately, specialized care for EDs can be difficult to find - especially for those not sick enough to be admitted to an inpatient facility but who are still struggling to thrive in daily life. For example, in New Mexico there is only one inpatient treatment center for EDs and no specialized outpatient services. This leaves many people suffering from EDs without options for care because they are not yet sick enough. There is a need for novel interventions in this setting that go beyond the traditional weight and food-focused medical interventions and seek to help empower individuals, work around challenges, and live their lives to the fullest. To meet this need in our community, the study team is developing a preliminary outpatient treatment program. The ROADE (Restorative Occupational Approaches for Disordered Eating) Program is an 8-week, structured, multimodal intervention seeking to reduce psychosocial symptoms and improve self-management skills for disordered eating. The intervention strategies range from: (1) wellness activities like mindfulness meditation to improve interoception, self-acceptance, and as a self-guided coping tool (2) adaptation of health management and self-care occupations to improve daily functioning while navigating ongoing disordered eating symptoms and (3) light exercise like Yoga and lymphatic drainage exercises to reconnect in a positive way with the body, improve digestion, promote relaxation, and reduce muscle tension. The current research investigates the feasibility and acceptability of this intervention while testing preliminary effects on eating disorder symptoms.
Changes in Inhibition and Valuation After Eating
Bulimia NervosaAn impaired ability to exert control has been implicated in bulimia nervosa (BN), but this impairment may not represent a stable trait or be the most effective focus for treatment. This project aims to understand how predictions and value-based decisions about control may be abnormally influenced by eating in individuals with BN, thereby maintaining cycles of binge eating, purging, and restriction.