INTRODUCTION Misinterpretation of intrusive thoughts because of obsessive beliefs has been thought to be important in the development of obsessive compulsive symptoms. In current study, (I) the difference between OCD patients and healthy controls in regard of obsessive beliefs and (II) the relation of obsesive beliefs with the prevelance and severity of obsessive compulsive symptoms was investi...

OBJECTIVE To assess preliminarily the effectiveness of sodium oxybate in binge eating disorder. METHOD This was an open-label, prospective, 16-week, flexible dose study of sodium oxybate in binge eating disorder. The primary outcome was binge eating episode frequency. RESULTS Twelve individuals received sodium oxybate, 10 completed at least one postbaseline evaluation, and five completed th...

We found that development of obesity was coupled with emergence of a progressively worsening deficit in neural reward responses. Similar changes in reward homeostasis induced by cocaine or heroin are considered to be crucial in triggering the transition from casual to compulsive drug-taking. Accordingly, we detected compulsive-like feeding behavior in obese but not lean rats, measured as palata...

Considerable debate exists within the perfectionism literature regarding whether perfectionism is most accurately conceptualized as a dimensional or categorical construct. Specifically, some researchers have viewed perfectionism as a continuous construct, with extreme scores being associated with negative psychological outcomes (e.g., obsessive-compulsive disorder, eating disorders, etc.). In c...

INTRODUCTION Evidence shows that the prevalence of risk behaviors for eating disorders (RBED) among young people has increased in recent years. Body dissatisfaction, excessive exercise, body composition, economic status, and ethnicity may be risk factors for RBED. OBJECTIVE To evaluate the association of body dissatisfaction, psychological commitment to exercise, body fat, nutritional status,...

The purpose of this article was to describe the phenomenon of a new disorder called orthorexia nervosa. This paper proposes a theoretical framework for the definitions, prevalence, diagnostic criteria, method and treatment of orthorexia. This disturbing behaviour concerns the pathologic obsession for healthy nutrition. In contrast to eating disorders, people with orthorexia are obsessed with fo...

Food reward, not hunger, is the main driving force behind eating in the modern obesogenic environment. Palatable foods, generally calorie-dense and rich in sugar/fat, are thus readily overconsumed despite the resulting health consequences. Important advances have been made to explain mechanisms underlying excessive consumption as an immediate response to presentation of rewarding tastants. Howe...

CONTEXT Efforts to classify eating-disordered individuals based on concurrent personality traits have consistently converged on a typology encompassing "over-regulated", "dysregulated", and "low psychopathology" subgroups. In various populations, evidence has associated personality variations of an "over-regulated/dysregulated" type with differences on serotonin-system indices, and specifically...