Brain responds differently to food rewards in bulimia nervosa

(University of California - San Diego) Researchers at University of California San Diego School of Medicine have discovered differences in how the brain responds to food rewards in individuals with a history of bulimia nervosa (BN), an eating disorder characterized by frequent episodes of binge eating followed by efforts of purging to avoid weight gain. The findings further define specific brain mechanisms involved in eating disorders and could help lead to new treatment therapies.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news

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Eating disorders (EDs) are complex medical and psychiatric illnesses that can have serious consequences for health, relationships and general functioning. A recent review (Waller,  2016) suggests that cognitive behavioral therapies (CBT) have consolidated their position for both bulimia nervosa and binge eating disorders in adults. Some evidence suggests that the reach of CBT has been expanded to anorexia nervosa and adolescents with EDs (Pretorius et al., 2009; Dalle Grave , Calugi, Conti, Doll,&Fairburn, 2013; Fairburn et  al., 2009; 2013).
Source: Psychiatry Research - Category: Psychiatry Authors: Source Type: research
Abstract Eating disorders (ED) are prevalent mental illnesses composed mainly of anorexia nervosa, bulimia nervosa and binge eating disorders. Anxiety disorders are another set of mental illnesses, with phobic disorder (PD) being the most prevalent disorder. ED and PD are highly comorbid. The aim of this study is to assess, in 131 individuals attending an outpatient clinic for different health issues, the level of fear related to situations generating avoidance such as in social anxiety and specific phobias according to the fear questionnaire (FQ), the level of disgust according to the disgust scale (DS-R) and the...
Source: Eating and weight disorders : EWD - Category: Eating Disorders & Weight Management Authors: Tags: Eat Weight Disord Source Type: research
CONCLUSION: Structural abnormalities in the frontoparietal and posterior cingulate regions comprising circuits that support control and attentional processes should be investigated as potential contributors to the maintenance of bulimia nervosa and useful targets for novel interventions. PMID: 29688871 [PubMed - in process]
Source: Journal of Psychiatry and Neuroscience - Category: Psychiatry Tags: J Psychiatry Neurosci Source Type: research
This study aimed to provide lifetime and 12-month prevalence estimates of DSM-5 anorexia nervosa (AN), bulimia nervosa (BN), and binge-eating disorder (BED) from the 2012-2013 National Epidemiologic Survey Alcohol and Related Conditions (NESARC-III).
Source: Biological Psychiatry - Category: Psychiatry Authors: Tags: Archival Report Source Type: research
Abstract Purging disorder (PD) has been included as a named condition within the DSM-5 category of Other Specified Feeding or Eating Disorder and differs from bulimia nervosa (BN) in the absence of binge-eating episodes. The current study evaluated satiation through behavioral and self-report measures to understand how this construct may explain distinct symptom presentations for bulimia nervosa (BN) and purging disorder (PD). Women (N = 119) were recruited from the community if they met DSM-5 criteria for BN (n = 57), PD (n = 31), or were free of eating pathology (n = 31 controls). Participants co...
Source: Appetite - Category: Nutrition Authors: Tags: Appetite Source Type: research
This study examined the impact of individual differences in neural reactivity to food cues following acute stress on the trajectories of positive affect (PA) and negative affect (NA) surrounding binge eating. Women (n = 16) with BN symptoms viewed palatable food cues before and after a stress induction in the scanner. For two weeks, participants responded to prompts assessing affect and binge episodes several times a day. EMA data revealed NA increased and PA decreased before binge episodes in the natural environment. Additionally, NA decreased while PA increased following binge episodes. Changes in activation in the A...
Source: Journal of Psychiatric Research - Category: Psychiatry Source Type: research
Conclusions: This study suggests that low-frequency prelimbic cortex stimulation in BE would be useful for correcting prefrontal hypofunction which is strongly associated with BE and addiction pathogenesis.Stereotact Funct Neurosurg
Source: Stereotactic and Functional Neurosurgery - Category: Neurosurgery Source Type: research
Classifying eating disorders in youth is challenging in light of developmental considerations and high rates of diagnostic migration. Understanding the transactional relationships among eating disorder symptoms, both across the transdiagnostic spectrum and within specific diagnostic categories, may clarify which core eating disorder symptoms contribute to, and maintain, eating-related psychopathology in youth. We utilized network analysis to investigate interrelationships among eating disorder symptoms in 636 treatment-seeking children and adolescents (90.3% female) ages 6–18 years (M age = 15.4 ± 2.2). An und...
Source: Journal of Abnormal Psychology - Category: Psychiatry & Psychology Source Type: research
;lvarez MªT, Castro Alija MªJ, Martín-Palmero Á Abstract Bulimia nervosa and binge eating disorder are unique nosological entities. Both show a large variability related to its presentation and severity which involves different therapeutic approaches and the need to individualize the treatment, thus it is indispensable a multidisciplinary approach. Patients with bulimia nervosa may suffer from malnutrition and deficiency states or even excess weight, while in binge eating disorders, it is common overweight or obesity, which determine other comorbidities. Many of the symptoms and complicatio...
Source: Nutricion Hospitalaria - Category: Nutrition Authors: Tags: Nutr Hosp Source Type: research
df;T, Castro Alija MªJ, Martín-Palmero Á Abstract Eating disorders (ED) are characterized by persistent changes in eating habits that negatively affect a person's health and psychosocial abilities. They are considered psychiatric disorders, highly variable in their presentation and severity, with a huge impact on nutrition, which conditions various therapeutic approaches within a key multidisciplinary context. A group of experts in nutrition, we decided to set up a task force adscribed to the "Sociedad Española de Nutrición Parenteral y Enteral" (SENPE), which has stated ...
Source: Nutricion Hospitalaria - Category: Nutrition Authors: Tags: Nutr Hosp Source Type: research
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