Rumination is a cognitive process involving repetitive thoughts about negative experiences and emotions and is associated with psychopathology. Rumination has been implicated in mood and anxiety disorders, and there is a growing body of research on rumination in relation to eating disorder (ED) psychopathology. The current meta-analytic review focused on the literature addressing rumination and ED psychopathology. A comprehensive search process identified 38 studies, which primarily used cross-sectional designs with non-clinical samples. Results demonstrated that rumination was concurrently (r = 0.33) and prospectively (r = 0.22-0.23) associated with ED psychopathology, and that groups with ED psychopathology evidenced higher levels of rumination compared to non-ED control groups (g = 0.95), though no significant differences in rumination were observed when comparing anorexia nervosa to bulimia nervosa groups (g = 0.09). In addition, a narrative review of five experimental studies suggested that rumination in response to ED-related stimuli was related to increased negative affect and negative body-related cognitions across clinical and non-clinical samples. The type of rumination and sample population emerged as moderators of effect sizes, such that larger effects were observed among samples using ED-specific measures of rumination and heterogeneous samples compared to only non-clinical samples. Taken together, this literature demonstrates that rumination is a salient process in ED psychopathology, though the literature is characterized by methodological limitations and the need for more fully elaborated theories on the role of rumination in EDs. Findings are discussed in the context of existing models of rumination and ED psychopathology, with suggestions for future research in this area.

While these reviews have generally suggested varying patterns of neurocognitive deficits across EDs, there remain critical limitations regarding the methodological quality of these studies (e.g., the lack of prospective designs, consideration of confounding influences, or examination of interrelationships between neurocognitive domains and relationships between neurocognition and other relevant behavioral constructs). Specifically, we outline 10 key areas that are imperative to address in future research in this area in order to move our field forward.

Findings suggest that symptoms related to shape and weight concerns and guilt are central ED symptoms, while physical symptoms, self-esteem, and feeling overwhelmed are links that may underlie comorbidities in EDs. Results provided some support for the validity of network approaches, in that admission networks conveyed prognostic information. However, the lack of correspondence between symptom reduction and change in network strength indicates that future research is needed to examine network dynamics in the context of intervention and relapse prevention.

No abstract

Previous research demonstrates that lesbian and bisexual (LB) women report more binge eating behaviors compared to heterosexual women although the explanations for this disparity are not well understood. LB women also experience distal (e.g., discrimination) and proximal (e.g., expectations of rejection) minority stressors that are related to negative mental and physical health outcomes. The present study investigated the association between minority stressors and binge eating behaviors in LB women. A sample of 164 LB women completed an online survey that included measures of distal and proximal sexual minority stressors, emotional-focused coping, social isolation, negative affect, and binge eating. The resultant model partially supported both the psychological mediation framework and the affect regulation model. The principal finding was that among LB women, proximal stressors were associated with social isolation and emotion-focused coping, which in turn were associated with negative affect and ultimately binge eating. Overall, the study provides evidence that minority stress is associated with binge eating and may partially explain the disparity in binge eating between LB and heterosexual women.

Our current understanding of the etiology and maintenance of eating disorders and obesity continues to be far from complete. Similarly, our understanding of determinants of both successful and unsuccessful weight loss surgery is also quite limited. While a number of research methodologies have been applied to these areas, one methodology that has recently seen a rise in popularity is the use of ecological momentary assessment (EMA). EMA allows one to study a variety of variables of interest in the natural environment. The study of eating disorders, obesity, and bariatric surgery has all been conducted using EMA recently. The current study is a review of these areas and summarizes the recent literature (past 3 years) in eating disorders, obesity, and bariatric surgery using EMA methodology.

Self-discrepancy theory (SDT) is a model of the relations between the self and affect which has been applied to the study of different types of psychopathology including depression, anxiety, and eating disorders. Although the theory itself is compatible with a transdiagnostic perspective on psychopathology, to date no systematic review of the literature has examined that possibility. We conducted a meta-analysis that synthesized the literature on self-discrepancy and psychopathology across a heterogeneous range of 70 studies. Results showed a small-to-medium association between self-discrepancy and psychopathology that was highly robust and similar in magnitude across domains. Furthermore, self-discrepancy was related to higher levels of a range of negative emotions and lower levels of a range of positive emotions. Meta-regression models showed that the effects were greater for actual:ideal discrepancy compared with actual:ought discrepancy for both depression and anxiety, which was contrary to the tenets of SDT which suggests specific associations between actual:ideal discrepancy and depression and actual:ought discrepancy and anxiety. Measurement type (i.e., idiographic vs. nomothetic) was a significant predictor of the effects for depression and anxiety, such that nomothetic measures evidenced greater associations compared with idiographic measures. Our findings could suggest that self-discrepancy represents a contributory factor related to a number of psychiatric disorders. However, the tenet of SDT suggesting unique associations between actual:ideal and actual:ought discrepancy and anxiety and depression respectively was not supported. Implications are discussed for future research on self-discrepancy and psychopathology including the study of mechanistic frameworks.

IMPORTANCE Alkaline free-base nicotine is bitter and a respiratory irritant. High-nicotine electronic cigarette (e-cigarette) products contain acid additives that change nicotine from a free-base to a protonated salt chemical form, which could improve the sensory experience of vaping, particularly among never smokers unaccustomed to inhaling free-base nicotine. OBJECTIVE To determine whether exposure to e-cigarettes with salt vs free-base nicotine formulations improves the appeal and sensory experience of vaping e-cigarettes and whether nicotine formulation effects differ by e-cigarette flavor and ever combustible cigarette smoking status. DESIGN, SETTING, AND PARTICIPANTS Single-visit double-blind within-participant randomized clinical trial was conducted in an academic medical center outpatient clinical research facility in Southern California. Participants were 119 individuals with past 30-day e-cigarette or combustible cigarette use aged 21 years or older recruited from November 2019 to March 2020. INTERVENTIONS Participants self-administered standardized puffs of each 10 differently flavored e-cigarette solutions using a pod-style device. Each flavor was administered in salt (benzoic acid added) and free-base (no benzoic acid) nicotine formulations with commensurate nicotine concentrations (mean, 23.6 mg/mL). The 20 solutions were administered in randomly assigned sequences. Immediately after puffing each solution, participants rated appeal and sensory attributes. Self-reported appeal (mean of like, dislike [reverse-scored], and willingness to use again ratings) and 4 sensory attributes (sweetness, smoothness, bitterness, and harshness; analyzed individually) on visual analog scales with not at all and extremely anchors (range, 0-100). MAIN OUTCOMES AND MEASURES RESULTSOf the 119 participants; 39 (32.8%) were female. The mean (SD) age was 42.1 (14.4) years;