Evaluating the muscularity-oriented eating test: Factor structure and psychometric properties among university athletes and across sexes.

Objective: The Muscularity-Oriented Eating Test (MOET) was developed to measure muscularity-oriented eating pathology among young men; however, this construct is relevant across sexes and may be particularly applicable to athletes. Thus, this study sought to validate the MOET among male and female athletes and non-athletes.

Methods: Students (N = 2189) from three U.

Exploring muscularity concerns and behaviours among boys and men with probable eating disorders.

The muscular body ideal and muscularity concerns and behaviors have been posited to be major drivers of eating disorder psychopathology among boys and men. However, there is limited evidence of this, particularly among large, international samples. This study aimed to compare muscularity concerns and behaviors across probable eating disorder diagnoses among a non-clinical sample of boys and men from Canada and the United States.

Comparing Outcomes for Telehealth Versus In-Person Family-Based Treatment: A Retrospective Chart Review.

Objective: Telehealth services have become part of many eating disorder (ED) treatment settings; yet, few studies have examined the effectiveness of family-based treatment (FBT) delivered via telehealth. This study compared in-person and telehealth FBT in rates of weight restoration, treatment completion, and metrics of treatment progress, and explored potential moderators of these outcomes.

Method: Retrospective chart review identified 169 adolescents (10-18 years) with restrictive EDs who received FBT in person before the COVID-19 pandemic (n = 92) or via telehealth during the pandemic (n = 77).

Identification of Affective- and Social-Reinforcement Functions of Driven Exercise: Evidence From Three Samples.

Driven exercise is a transdiagnostic maladaptive behavior, especially common in eating disorders (ED); however, its maintenance mechanisms remain poorly understood. To address this gap, we examined the applicability of previously empirically-derived and validated reinforcement function models in explaining driven exercise maintenance in studies varying across developmental stages and clinical presentations (Study 1: =279 adolescents/adults oversampled for EDs; Study 2: =118 adolescent/adult inpatients with severe EDs; Study 3: =52 adults oversampled for athletes and/or EDs). Results supported the utility of a four-function model (automatic positive/negative reinforcement [APR/ANR; increase/decrease negative affect], social positive/negative reinforcement [SPR/SNR; engage in/avoid interpersonal situations]) in explaining driven exercise.

Updates in the treatment of eating disorders in 2024: a year in review in .

A broad array of important and diverse studies surrounding the treatment of eating disorders were published in in 2024. Anorexia nervosa is the most lethal and arguably the most well-studied eating disorder, yet treatment outcomes have been slow to advance. Herein, we review advances to both measuring AN symptom severity specifiers, identifying key treatment targets, and overview treatment advances.

Eating disorders among an online sample of Canadian and American boys and men.

There is a continued need to identify the prevalence and sociodemographic correlates of eating disorders, particularly among the under-researched group of boys and men, to inform prevention and intervention efforts. Data from The Study of Boys and Men, a sample of 1553 boys and men aged between 15 and 35 years in Canada and the United States, were analyzed in 2024. Probable eating disorder diagnoses were identified using a previously established algorithm based on current diagnostic criteria.

Prevalence and correlates of muscle dysmorphia in a sample of boys and men in Canada and the United States.

Background: Muscle dysmorphia is a significant mental health condition that has been under-researched in epidemiological, community-based studies. Therefore, this study aimed to identify the prevalence and correlates of probable muscle dysmorphia among a sample of Canadian (n = 784) and American (n = 563) boys and men ages 15-35 years.

Methods: The sample comprised 1,488 boys and men who completed a variety of measures and items to capture sociodemographic characteristics and muscle dysmorphia symptoms.

Body Checking Behaviors Among Boys and Men With Muscle Dysmorphia, Anorexia Nervosa, and Atypical Anorexia Nervosa.

Objectives: First, to compare body checking behaviors among boys and men with probable muscle dysmorphia or probable anorexia nervosa/atypical anorexia nervosa vs. those with neither. Second, to determine whether there is a difference in body checking behaviors between boys and men with probable muscle dysmorphia vs.

The impact of incorporating an eating disorder screening tool and an eating disorder diagnostic workshop in outpatient general psychiatry settings in publicly insured populations: a case series.

With an elevated prevalence of disordered eating in low-income settings, efforts to optimize the detection of eating disorders (EDs) in such settings are necessary. A significant barrier relates to the scarcity of training for clinicians not working in specialized ED settings. This manuscript assessed the impact of an ED screening tool and an ED assessment workshop upon the detection of EDs in publicly insured psychiatry settings.

Elucidating distinct and common fMRI-complexity patterns in pre-adolescent children with Attention-Deficit/Hyperactivity Disorder, Oppositional Defiant Disorder, and Obsessive-Compulsive Disorder diagnoses.

Importance: The pathophysiology of ADHD is complicated by high rates of psychiatric comorbidities, thus delineating unique versus shared functional brain perturbations is critical in elucidating illness pathophysiology.

Objective: To investigate resting-state fMRI (rsfMRI)-complexity alterations among children with ADHD, oppositional defiant disorder (ODD), and obsessive-compulsive disorder (OCD), respectively, and comorbid ADHD, ODD, and OCD, within the cool and hot executive function (EF) networks.

Design: We leveraged baseline data (wave 0) from the Adolescent Brain and Cognitive Development (ABCD) Study.

Exploring body ideal internalization, sociocultural pressures, and probable muscle dysmorphia in Canadian and American boys and men.

This study aimed to determine whether the internalization of body ideals and sociocultural pressures to adhere to body ideals are associated with a greater likelihood of having probable muscle dysmorphia. Cross-sectional data from 1553 boys and men ages 15-35 from Canada and the United States were used. Multiple logistic regression analyses determined the association between the internalization of three body ideals, sociocultural pressures to adhere to body ideals from four sources, and having probable muscle dysmorphia.

Associations Between Food Restriction, Alcohol and Marijuana Use and Co-Use, and Consequences Among College Students.

Background: Simultaneous alcohol and marijuana use (SAM) and food restriction on days students intend to drink are associated with an increased risk of substance use-related consequences. However, these negative outcomes have been studied mostly in alcohol-only use contexts. Little is known about the combination of alcohol, marijuana, SAM, and food restriction.

Distinct functional connectivity phenotypes in preadolescent children with binge eating disorder by BMI status.

Objective: The neurobiological mechanisms underpinning binge eating disorder (BED) in children remain largely unclear, as the alterations that have been identified to date may be attributable to BED, obesity, or compound effects. This study aimed to delineate functional connectivity (FC) patterns in inhibitory control and reward networks in preadolescent children with and without BED from the Adolescent Brain Cognitive Development (ABCD) Study according to BMI.

Methods: Resting-state FC was examined in the inhibitory control network by using seeds in the dorsolateral prefrontal cortex, the anterior cingulate cortex, and the posterior cingulate cortex, whereas the reward network included seeds in the orbitofrontal cortex, nucleus accumbens, and amygdala.

Assessing Psychological Remission in Adolescent Anorexia Nervosa: A Comparison of Patient and Parent Report.

Objective: The definition and assessment of remission in anorexia nervosa (AN) needs greater consensus. Particularly in adolescents, the use of patient-reported composite indices (such as the Eating Disorder Examination [EDE] Global Score) as the sole measure of psychological remission has the potential to obscure patients' true clinical status, given developmental factors and the propensity towards symptom minimization in AN.

Method: End of treatment (EOT) data from a randomized controlled trial comparing two formats of manualized family-based treatment for adolescents with AN (N = 106) were analyzed.

Parent version of the Eating Disorder Examination: Reliability and validity in a treatment-seeking sample.

Background: Assessment of eating disorders (ED) in youth relies heavily on self-report, yet persistent lack of recognition of the presence and/or seriousness of symptoms can be intrinsic to ED. This study examines the psychometric properties of a semi-structured interview, the parent version of the Eating Disorder Examination (PEDE), developed to systematically assess caregiver report of symptoms.

Methods: A multi-site, clinical sample of youth (N = 522; age range: 12 to 18 years) seeking treatment for anorexia nervosa (AN) and subsyndromal AN were assessed using the Eating Disorder Examination (EDE) for youth and the PEDE for collateral caregiver report.

Assessing midbrain neuromelanin and its relationship to reward learning in anorexia nervosa: Stage 1 of a registered report.

Introduction: Anorexia nervosa (AN) is a debilitating and potentially chronic eating disorder, characterized by low hedonic drive toward food, which has been linked with perturbations in both reward processing and dopaminergic activity. Neuromelanin-sensitive magnetic resonance imaging (MRI) is an emerging method to index midbrain neuromelanin-a by-product of dopaminergic synthesis. The assessment of midbrain neuromelanin, and its association with AN psychopathology and reward-related processes, may provide critical insights into reward circuit function in AN.

Updates in the treatment of eating disorders in 2023: a year in review in .

Empirical evidence is unequivocal in illustrating that the majority of patients with eating disorders will not fully recover during treatment. To that end, the need for optimized treatment approaches and improved patient outcomes cannot be overstated. While empirical efforts are underway to optimize outcomes, this article reviews treatment-related research findings published in on during 2023.

Neuromodulation of Eating Disorders: A Review of Underlying Neural Network Activity and Neuromodulatory Treatments.

Eating disorders are a group of psychiatric conditions that involve pathological relationships between patients and food. The most prolific of these disorders are anorexia nervosa, bulimia nervosa, and binge eating disorder. The current standard of care involves psychotherapy, pharmacotherapy, and the management of comorbid conditions, with nutritional rehabilitation reserved for severe cases of anorexia nervosa.

A multi-modal assessment of fear conditioning in adolescent anorexia nervosa.

Objective: Anorexia nervosa (AN) is a pernicious psychiatric disorder which is principally characterized by a fear of weight gain. Notwithstanding the centrality of fear in the psychopathology of AN, controlled assessments of negative valence systems are lacking. Herein we assess fear conditioning in adolescent females with AN.

Functional connectivity and complexity analyses of resting-state fMRI in pre-adolescents demonstrating the behavioral symptoms of ADHD.

Attention deficit hyperactivity disorder (ADHD) has been characterized by impairments among distributed functional brain networks, e.g., the frontoparietal network (FPN), default mode network (DMN), reward and motivation-related circuits (RMN), and salience network (SAL).

Task-Evoked Neural Activity During Reward Anticipation and Inhibitory Control in Preadolescent Binge Eating Disorder.

Purpose: Behavioral features of binge eating disorder (BED) suggest abnormalities in reward and inhibitory control. Studies of adult populations suggest functional abnormalities in reward and inhibitory control networks. Despite behavioral markers often developing in children, the neurobiology of pediatric BED remains unstudied.

The prevalence of disordered eating in outpatient general psychiatry settings in publicly insured populations: a case series.

There is a dearth of research assessing the prevalence of eating disorders in publicly insured populations. While evidence shows that eating disorders affect people of all racial, ethnic, and socioeconomic backgrounds, research has neglected to focus on the rate at which they occur among those who have public health insurance. The present study indexes the prevalence of clinically significant disordered eating in a case series of 165 adults in a publicly insured sample at an outpatient general psychiatry clinic in Los Angeles, California.

Anabolic-Androgenic Steroid Use: Patterns of Use among a National Sample of Canadian Adolescents and Young Adults.

Background: Androgenic-anabolic steroid (AAS) use is relatively common among international recreational and community samples and is associated with several deleterious side effects and health consequences that have not been studied recently among a large Canadian sample. Therefore, the purpose of this study was to assess and describe characteristics of AAS users compared to non-AAS users among a national sample of Canadian adolescents and young adults.

Methods: Data from 2,774 adolescents and young adults from the Canadian Study of Adolescent Health Behaviors were analyzed.

The social epidemiology of binge-eating disorder and behaviors in early adolescents.

Background: Binge-eating disorder (BED) is the most common eating disorder phenotype and is linked to several negative health outcomes. Yet, little is known about the social epidemiology of BED, particularly in early adolescence. The objective of this study was to examine the associations between sociodemographic characteristics and BED and binge-eating behaviors in a large, national cohort of 10-14-year-old adolescents in the United States (U.