Self-induced vomiting in eating disorders: Associated features and treatment outcome

Self-induced vomiting is adopted by people with a variety of eating disorders (ED) to control body shape and weight. We tested the prevalence, the associated features and the role on treatment outcome of self-induced vomiting in 152 ED patients consecutively admitted to an inpatient cognitive-behavioral treatment (CBT), based on the transdiagnostic CBT for ED. The Eating Disorder Examination, together with the Beck Depression Inventory, the State-Trait Anxiety Inventory and the Temperament and Character Inventory were recorded at entry and at end of treatment. Self-induced vomiting was reported in 35.5% of cases, and 21.1% had multiple purging with vomiting. Individuals with vomiting and those with multiple purging had significantly higher BMI and a higher frequency of bulimic episodes, but individuals with multiple purging were also characterized by higher levels of depression, longer ED duration, more severe ED psychopathology and lower self-directness. Individuals with vomiting had higher eating concern and novelty seeking compared with those without purging behaviors. However, the three groups had similar dropout rates and outcomes in response to inpatient CBT, in keeping with the transdiagnostic theory of EDs.     

Multidimensional eating profiles associated with personality traits during emerging adulthood: A cluster-analytic approach

IntroductionPersonality traits can give a fuller understanding for eating behaviors, such as food choice, (un)healhty eating.ObjectiveTo examine eating styles with a multidimensional perspective considering cognitive, affective and conative (or behavioral) components of eating styles in emerging adulthood, and how they may be related to the Big Five and impulsivity traits.MethodsSelf-reported questionnaires were used to explore the association between the eating styles, Big five traits and facets of impulsivity among young French adults (n = 450; Mean Age = 20.84 years; SD = 2.4, with 79.6% of women).ResultsOn the basis of cluster analysis, six eating styles were identified: Healthier, Uninhibited, Dysregulated, Stress-related, Restrictive and Ethical restraint eaters. Results suggest that Uninhibited eaters reported lower scores on Conscientiousness and higher scores on Negative and Positive urgency. The Dysregulated group had lower scores on Extraversion, and high scores on Neuroticism, Negative urgency and Lack of premeditation. Restrictive eaters showed low levels of Openness and Lack of premeditation. The Ethical restraint style was characterized by low scores on Agreeableness and Positive urgency. The ability or inability to cope with both emotional distress and positive and negative impulsive behaviors was related to young adult's eating cognitions and behaviors.ConclusionConsidering the existence of subtypes of eaters and separate associated personality-related traits, an individual differences perspective (e.g., age, gender, disposition to control one's emotional experiences) should be incorporated.     

How resilient are resilience scales? The Big Five scales outperform resilience scales in predicting adjustment in adolescents

Waaktaar, T. & Torgersen, S. (2009). How resilient are resilience scales? The Big Five scales outperform resilience scales in predicting adjustment in adolescents. Scandinavian Journal of Psychology, 51, 157–163. This study’s aim was to determine whether resilience scales could predict adjustment over and above that predicted by the five‐factor model (FFM). A sample of 1,345 adolescents completed paper‐and‐pencil scales on FFM personality (Hierarchical Personality Inventory for Children), resilience (Ego‐Resiliency Scale [ER89] by Block & Kremen, the Resilience Scale [RS] by Wagnild & Young) and adaptive behaviors (California Healthy Kids Survey, UCLA Loneliness Scale and three measures of school adaptation). The results showed that the FFM scales accounted for the highest proportion of variance in disturbance. For adaptation, the resilience scales contributed as much as the FFM. In no case did the resilience scales outperform the FFM by increasing the explained variance. The results challenge the validity of the resilience concept as an indicator of human adaptation and avoidance of disturbance, although the concept may have heuristic value in combining favorable aspects of a person’s personality endowment.     

正念对饮食行为的影响及作用机理

正念是一种以不批判的态度全然接纳当下体验的觉察力,正念训练对改善不良饮食行为的积极作用正日益受到研究者的广泛关注。本文对正念在改善不良饮食行为中的积极作用与机理,以及基于正念的不良饮食行为矫正方法进行了梳理与归纳。在已有研究的基础上,未来研究需要进一步探索正念对健康饮食行为的作用、从生命周期的视角考察正念对饮食行为的影响、基于思维压抑视角探讨正念的作用机制以及检验正念不良饮食矫正效果的边界。     

A structural equation model of intuitive eating with adolescents

IntroductionThe tendency to eat by paying attention and respecting the body's hunger and satiety cues is called intuitive eating. This eating behavior has been linked to positive health and well-being outcomes.ObjectiveThe purpose of this study was to test a global model linking intuitive eating with self-esteem, body esteem, media influence and including fear of negative appearance evaluation in adolescents’ boys and girls.MethodIn total, 740 adolescent high school students (51.5% girls; M age = 14, SD = 1.5) completed self-report questionnaires with measures of intuitive eating, body esteem, self-esteem, media influence and fear of negative appearance evaluation.ResultsStructural equation modeling revealed an overall excellent fit for the final four-variable model excluding the fear of negative appearance evaluation variable. Mediation analyses showed an indirect relationship between intuitive eating and body esteem via media influence, for girls but not for boys. Body esteem mediated the relationship between intuitive eating and self-esteem, for girls and boys.ConclusionA new model is proposed where intuitive eating is associated with self-esteem through body esteem and media influence. These findings suggest that regulating attitudes and behaviors toward food may be related to higher psychological well-being.