Early adult sexual assault and disordered eating: the mediating role of posttraumatic stress symptoms

The impact of intuitive eating on the association between posttraumatic stress disorder (PTSD) symptoms and disordered eating among women who have experienced intimate partner violence (IPV)

OBJECTIVE

Trauma exposure is associated with disordered eating, with recent evidence suggesting PTSD symptoms may be a more proximal predictor. Intuitive eating is a well-established protective factor against disordered eating; however, no previous studies have assessed whether intuitive eating buffers the association between PTSD symptoms and disordered eating.

METHODS

Two hundred sixteen women who had experienced intimate partner violence (IPV) and were residing at a domestic violence shelter completed a survey. The current study assessed the moderating role of intuitive eating in the associations between PTSD symptoms and two types of disordered eating behaviors: binge eating and compensatory behaviors.

RESULTS

Intuitive eating did not moderate the association between PTSD symptoms and a dichotomous measure of binge eating (no binge eating vs. any binge eating). However, intuitive eating did moderate the association between PTSD symptoms and binge frequency, among participants endorsing any degree of binge eating, such that PTSD symptoms were significantly associated with binge frequency at low, but not moderate or high, levels of intuitive eating. Intuitive eating did not moderate the association between PTSD symptoms and compensatory behaviors.

DISCUSSION

Results suggest intuitive eating may be protective against binge eating frequency among women who have experienced IPV.

Psychedelics in the treatment of eating disorders: Rationale and potential mechanisms

Eating disorders are serious illnesses showing high rates of mortality and comorbidity with other mental health problems. Psychedelic-assisted therapy has recently shown potential in the treatment of several common comorbidities of eating disorders, including mood disorders, post-traumatic stress disorder, and substance use disorders. The theorized therapeutic mechanisms of psychedelic-assisted therapy suggest that it could be beneficial in the treatment of eating disorders as well. In this review, we summarize preliminary data on the efficacy of psychedelic-assisted therapy in people with anorexia nervosa, bulimia nervosa, and binge eating disorder, which include studies and case reports of psychedelic-assisted therapy with ketamine, MDMA, psilocybin, and ayahuasca. We then discuss the potential therapeutic mechanisms of psychedelic-assisted therapy in these three eating disorders, including both general therapeutic mechanisms and those which are relatively specific to eating disorders. We find preliminary evidence that psychedelic-assisted therapy may be effective in the treatment of anorexia nervosa and bulimia nervosa, with very little data available on binge eating disorder. Regarding mechanisms, psychedelic-assisted therapy may be able to improve beliefs about body image, normalize reward processing, promote cognitive flexibility, and facilitate trauma processing. Just as importantly, it appears to promote general therapeutic factors relevant to both eating disorders and many of their common comorbidities. Lastly, we discuss potential safety concerns which may be associated with these treatments and present recommendations for future research.

PTSD symptoms as a potential mediator of associations between military sexual assault and disordered eating

Despite increasing rates of sexual assault in the military and high rates of disordered eating and post-traumatic stress disorder (PTSD) among veterans, little is known about how these constructs are related. This study examined whether PTSD symptoms mediate the relation between military sexual assault and disordered eating among female veterans. United States female veterans (N = 98) completed self-report measures assessing military sexual assault, PTSD, and disordered eating. Results indicated that military sexual assault was associated with higher PTSD symptoms and disordered eating. PTSD symptoms did not mediate the relation between military sexual assault and overall levels of disordered eating. However, PTSD symptoms fully mediated the relation between military sexual assault and the Bulimia and Food Preoccupation subscale of the Eating Attitudes Test-26. Findings suggest that military sexual assault may contribute to the development of bulimia nervosa symptoms indirectly through PTSD symptoms. Thus, the findings do not support a global relationship between trauma and all facets of disordered eating, but demonstrate a relationship between PTSD and bulimia nervosa symptoms, with purging potentially functioning as an emotion regulation strategy. Future longitudinal studies are needed to establish temporal precedence of these associations.

Eating expectancies among trauma-exposed Latinx college students: The role of mindful attention

Objective: Emergent research suggests that trauma-exposed Latinx college students are a particularly at-risk group for eating-related problems. For this reason, there is a need to further understand the cognitive processes that may underpin maladaptive eating among this vulnerable segment of the population. Participants: Participants included 304 trauma exposed Latinx college students (84.5% females; Mage = 22.8 years, SD = 5.79). Methods: The current study examined the role of mindful attention in relation to several distinct expectancies related to eating. Results: Results indicated that lower reported levels of mindful attention were associated with greater levels of expectancies of eating to help manage negative affect, expectancies that eating will alleviate boredom, and expectancies that eating will lead to feeling out of control. Conclusions: These findings suggest that it may be beneficial to assess for mindful attention among Latinx college students with a history of trauma exposure presenting with problematic eating behaviors.

Associations among Intimate Partner Violence, Posttraumatic Stress Disorder Symptoms, and Disordered Eating among Women Intimate Partner Violence Survivors Residing in Shelter

Previous research has not assessed the association between intimate partner violence (IPV) and disordered eating (DE), nor the potential indirect effect through posttraumatic stress disorder (PTSD) symptoms, among residents of IPV shelters. Among 212 IPV survivors, this study examined these and the differential associations by PTSD symptom cluster and types of DE. In the current sample, 67.9% met criteria for probable PTSD, 20.3% met criteria for a probable eating disorder, and 18.4% had probable comorbid diagnoses. Consistent with escape theory, there was an indirect effect of IPV on DE through PTSD symptoms. Additionally, there was an indirect effect of IPV on weight/shape concerns and binge symptoms through PTSD symptoms. Although there was a significant total effect of IPV on compensatory behaviors, there was no indirect effect through PTSD symptoms. When PTSD symptom clusters were examined concurrently, the only indirect effect of IPV on weight/shape concerns was via the PTSD symptom cluster of negative alterations in cognition and mood. Although there was an indirect effect of IPV on binge symptoms via PTSD symptoms overall, no specific PTSD symptom cluster drove this association. Implications highlight the need for attention to DE within this population. Consistent with escape theory, survivors' DE might serve to distract from psychological distress.

Mechanisms by which adverse childhood experiences, other traumas and PTSD influence the health and well-being of individuals with eating disorders throughout the life span

BACKGROUND

Multiple published sources from around the world have confirmed an association between an array of adverse childhood experiences (ACEs) and other traumatic events with eating disorders (EDs) and related adverse outcomes, including higher morbidity and mortality.

METHODS

In keeping with this Special Issue's goals, this narrative review focuses on the ACEs pyramid and its purported mechanisms through which child maltreatment and other forms of violence toward human beings influence the health and well-being of individuals who develop EDs throughout the life span. Relevant literature on posttraumatic stress disorder (PTSD) is highlighted when applicable.

RESULTS

At every level of the pyramid, it is shown that EDs interact with each of these proclaimed escalating mechanisms in a bidirectional manner that contributes to the predisposition, precipitation and perpetuation of EDs and related medical and psychiatric comorbidities, which then predispose to early death. The levels and their interactions that are discussed include the contribution of generational embodiment (genetics) and historical trauma (epigenetics), social conditions and local context, the ACEs and other traumas themselves, the resultant disrupted neurodevelopment, subsequent social, emotional and cognitive impairment, the adoption of health risk behaviors, and the development of disease, disability and social problems, all resulting in premature mortality by means of fatal complications and/or suicide.

CONCLUSIONS

The implications of these cascading, evolving, and intertwined perspectives have important implications for the assessment and treatment of EDs using trauma-informed care and trauma-focused integrated treatment approaches. This overview offers multiple opportunities at every level for the palliation and prevention of EDs and other associated trauma-related conditions, including PTSD.

Understanding the relationship between interpersonal trauma and disordered eating: An extension of the model of psychological adaptation

OBJECTIVE

Interpersonal trauma is a nonspecific risk factor for disordered eating (DE). Studies have begun to examine mechanisms that explain the relationship; however, few have tested comprehensive theoretical models. The Model of Psychological Adaptation (McCann, Sakheim, & Abrahamson, 1988) posits that trauma exposure results in core schema disruptions that are associated with varying psychological response patterns, or psychological adaptations, that are also established predictors of DE, such as interpersonal and affective problems. The model has been successfully applied to symptoms of other psychological disorders, such as PTSD and depression, but has not previously been extended to predict DE. The current study addressed this gap in the literature by assessing an extension of the Model of Psychological Adaptation to DE.

METHOD

A sample of 371 undergraduate women completed an online survey.

RESULTS

Using structural equation modeling, the results of the current study demonstrated positive fit for a model that represents the extension of the Model of Psychological Adaptation to DE.

CONCLUSION

These findings corroborate the link between interpersonal trauma and DE, thus demonstrating the potential importance of assessing for DE symptoms among clients who have survived interpersonal trauma and attending to trauma history among clients who have DE. In addition, it highlights mechanisms that may be relevant to the conceptualization and treatment of DE among survivors of interpersonal trauma. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Past-Year Abuse and Eating Disorder Symptoms Among U.S. College Students

Evidence consistently indicates associations between eating disorders (EDs) and childhood emotional, physical, and sexual abuse, but the relationship between EDs and abuse occurring later in development has largely been unexplored. Therefore, the objective of this study was to examine associations between past-year abuse and ED symptoms among college students. Participants represented 12 U.S. colleges and universities participating in the Healthy Bodies Study (HBS) between 2013 and 2015 (N = 10,204; M_age = 23.38 years). Students self-reported experiences of emotional, physical, and sexual abuse over the past year. Cognitive ED symptoms (i.e., dietary restraint, shape/weight overvaluation, body dissatisfaction) were measured via the Short-Eating Disorder Examination-Questionnaire (S-EDE-Q), and behavioral ED symptoms (i.e., binge eating, purging) were measured via items from the full EDE-Q. Regression models that adjusted for demographics and weight status were conducted to examine associations between past-year abuse and ED symptoms. Past-year emotional, physical, and sexual abuse each exhibited independent associations with ED symptoms. When mutually adjusting for emotional, physical, and sexual abuse, past-year emotional abuse was associated with higher levels of dietary restraint (b = 0.20, p = .02), shape/weight overvaluation (b = 0.85, p < .001), body dissatisfaction (b = 0.63, p < .001), binge eating (prevalence ratio [PR] = 1.23, p = .002), and purging (PR = 1.68, p < .001), and past-year sexual abuse was associated with shape/weight overvaluation (b = 0.35, p = .03) and purging (PR = 1.71, p = .009) but no other ED symptoms. No associations were observed for past-year physical abuse in mutually adjusted models. In summary, past-year emotional abuse emerged as a key correlate of all ED symptoms examined in this sample of U.S. college students, while past-year sexual abuse also emerged as a key correlate of shape/weight overvaluation and purging. Findings emphasize the need to screen for abuse and implement abuse prevention efforts on college campuses.

Disordered eating as a repercussion of sexual assault: a consequence to consider

PURPOSE

This study aims at clarifying the links between sexual violence and disordered eating (DE).

METHODS

In a sample of 12,638 victims of self-reported sexual violence, we analyzed the situation of 546 victims that declared having developed DE. We assessed the characteristics of the assault (age, type of aggression) and the medical consequences (PTSD, depression, suicide attempts, anxiety disorders, etc.).

RESULTS

DE prevalence was 4.3% in the victim sample. The age of the first assault in DE victims was significantly lower than that of the whole population (12 years vs 16 years for median; p < 0.001). A much higher prevalence of sexual assault consequences was present in victims developing DE with odd ratios (OR) for: self-mutilation (OR = 11.5 [8.29-15.95], p < 0.001); depression (OR = 5.7 [4.81-6.86], p < 0.001); self-medication (OR = 5.3 [3.86-7.19], p < 0.001); suicide attempts (OR = 4.5 [3.59-5.67], p < 0.001); post-traumatic stress disorder (OR = 3.8 [2.99-4.78], p < 0.001); anxiety troubles (OR = 5.2 [4.11-6.47], p < 0.001); alcoholism (OR = 4.0 [2.81-5.58], p < 0.001).

CONCLUSION

This study confirms the link between DE and sexual violence, especially in childhood, leading to severe psychological consequences. In this context, DE should be envisaged as a coping strategy accompanying emotional dysregulation due to traumatic events, and be treated as such.

LEVEL OF EVIDENCE

Level IV: Evidence obtained from multiple time series analysis such as case studies.

Eating Disorders and Posttraumatic Stress Disorder: A Network Analysis of the Comorbidity

Eating disorders (EDs) and posttraumatic stress disorder (PTSD) commonly co-occur, but the mechanisms driving this co-occurrence are not well understood. The current study explored the relationships between symptoms of ED and PTSD in a sample of male and female undergraduate students in order to identify pathways that may maintain the comorbidity. Network analysis was conducted in a sample of 344 first-year undergraduates to visualize partial correlations between each symptom in the comorbidity. Core symptoms, bridge symptoms, and direct pathways between ED and PTSD symptoms were identified. The PTSD symptoms negative emotions (strength = 1.13) and negative beliefs (strength = 1.11) were the strongest symptoms in the network. The strongest bridge nodes were the ED symptoms restriction (bridge strength = 3.32) and binge eating (bridge strength = 2.63). The strongest edges between ED and PTSD nodes were between binge eating and concentration (part r = .16), restriction and sleep (part r = .14), and binge eating and positive emotions (part r = .11). Findings suggest that PTSD symptoms related to negative alterations in cognitions and mood may be highly influential in the ED-PTSD network due to their relatedness to all other symptoms. The pathway between binge eating and inability to experience positive emotions suggest that the comorbidity may be partially maintained through an affect regulation function of binge eating.

Multiple perspectives and dialogue in understanding experiences of living with eating disorders: Two narratives-four unpackings

BACKGROUND

This is a response to Conti et al.'s article, "Listening in the dark: why we need stories of people living with severe and enduring anorexia nervosa" (published in JED, 2016), and its call for relational metaphors and a relational approach to supplement the traditional medical/psychological diagnostic language used to describe the life experiences and complex emotions of people affected by an eating disorder.

METHODS

Four authors with different backgrounds unpack two narratives, 'The Prima Donna with the Green Dress' and 'Breaking down the Wall', both narrated during fieldwork in multifamily therapy. The narratives are unpacked from the perspective of a therapist within multifamily therapy, a researcher who conducted the fieldwork, a researcher based in phenomenology and a researcher based in narrative inquiry. The authors enter into dialogue with the narratives, and with each other.

RESULTS

The four authors focus on different elements within the narratives and understand them differently. One, focuses on strength and pride, and art expression as a different form of language for people living with an eating disorder. Another, on the experience of isolation, boundaries, and balancing openness and closedness. A third, sees the narratives as expressing a wish to see and be seen, and the fourth focuses on the absence of, and longing for, a shared space to explore.

CONCLUSION

The aim is not to reach a correct or shared interpretation of the narratives but to explore how different perspectives may contribute to different insights, not only about one family in particular but about, more generally, the experiences of people living with an eating disorder. Our work shows the significance of engaging with multiple perspectives and dialogue as supplements to the traditional medical/psychiatric diagnostic language in both clinical practice and research.

The association between distress tolerance and eating expectancies among trauma-exposed college students with obesity

Objective Obesity is a significant health concern among college populations, and trauma-exposed students are particularly at risk for behaviors associated with weight gain. There is need for further understanding of factors that may contribute to increased obesity among this population. Participants: Participants included 139 trauma-exposed college students with obesity (76.3% females; M_age = 25.4 years, SD = 8.07). Method: The current cross-sectional study examined distress tolerance in terms of expectancies of eating to help manage negative affect and to lead to feeling out of control among trauma-exposed college students with obesity. Results: Results indicated that lower perceived distress tolerance was associated with greater expectancies of eating to help manage negative affect and to lead to feeling out of control. Conclusions: These findings suggest that distress tolerance may be a clinically significant target for treatment in order to better understand and treat expectancies of eating among trauma-exposed college students with obesity.

Resilience Mediates the Relationship Between PTSD Symptoms and Disordered Eating in College Women Who Have Experienced Sexual Victimization

It is widely known that sexual assault disproportionately affects women, and college-aged women are particularly at risk. Sexual assault can occur at any age and may have a varying range of emotional consequences for survivors, including pathological coping mechanisms such as disordered eating behaviors. This study examined the mediating effect of resilience on the relationship between posttraumatic stress disorder (PTSD) symptoms and disordered eating behavior in a sample of women who reported experiencing sexual assault in adulthood. The sample included 312 undergraduate women who identified as majority White (81.4%) and heterosexual (77.9%). Participants completed measures assessing history of sexual experiences, PTSD symptoms, disordered eating behavior, and resilience. Only those who reported experiences of sexual victimization since age 14+ were included in analyses. Results confirmed the hypothesis, as resilience significantly mediated the relationship between PTSD symptoms and disordered eating behavior in a sample of women with a history of sexual victimization. These results highlight the importance of resilience as a mitigating factor in recovery from sexual trauma. Other research indicates that resilience may have emotion-regulatory benefits that mitigate the development of disordered eating behavior. However, the specific functionality of resilience as a protective factor after sexual victimization is unclear. Further research should focus on ways to foster resilience in a clinical setting for those with a history of sexual victimization. Limitations of this study include underrepresentation of racial and ethnic minorities, as well as use of entirely self-report measures.

Sexual Victimization and Disordered Eating in Bisexual Women: A Test of Objectification Theory

The current study (a) ascertained whether there is a relationship between sexual victimization (SV) and disordered eating (DE) among bisexual women, (b) assessed whether objectification theory explains the relationship, and (c) tested for group differences between bisexual and heterosexual women on SV, DE, and other objectification theory variables. Utilizing a sample of 164 undergraduate bisexual women, there was a significant positive relationship between SV and DE that was serially mediated by self-surveillance and body shame. In addition, bisexual participants endorsed more SV, DE, body shame, and interoceptive deficits than a comparison sample of 335 undergraduate heterosexual women. Implications are discussed.

Longitudinal associations of trauma exposure with disordered eating: Lessons from the Great Smoky Mountains Study

Disordered eating is prevalent among trauma survivors, yet little is known about mechanisms underlying this relation. We explored cross-sectional and longitudinal associations of trauma exposure and posttraumatic stress disorder symptoms (PTSD) with disordered eating among 1,420 community-based youth participating in the Great Smoky Mountain Study. Participants were interviewed about trauma exposure, PTSD symptoms, and disordered eating at regular intervals throughout childhood, adolescence, and early adulthood. Our findings confirmed associations of all forms of trauma exposure (violent, sexual, and other) with disordered eating symptoms in childhood and adulthood, although the pattern of results varied by disordered eating symptom and trauma exposure type. Only non-sexual, non-violent trauma exposure in childhood had significant associations with any disordered eating symptoms in adulthood. Within childhood, trauma exposures but not PTSD symptoms showed significant longitudinal associations with bulimia nervosa symptoms and sustained appetite changes and preoccupation with eating. In adulthood, PTSD symptoms but not trauma exposures showed significant longitudinal associations only with bulimia nervosa symptoms. The association of specific PTSD clusters on bulimia nervosa symptoms was significant for reexperiencing, whereas hyperarousal symptoms trended toward significance. The impact of trauma exposures on disordered eating may vary by developmental period.

Associations Between Trauma, Early Maladaptive Schemas, Personality Traits, and Clinical Severity in Eating Disorder Patients: A Clinical Presentation and Mediation Analysis

Background: The literature has shown a significant association between traumatic experiences and eating psychopathology, showing a greater symptomatology in patients with trauma history. Less is known about the associations between trauma and cognitive schemas, and personality traits and the differences between childhood and adulthood trauma experiences. Thus, this paper aims to assess the clinical and psychological characteristics of eating disorder (ED) patients, looking for differences between patients without a history of trauma and patients with trauma experiences, as well as at possible differences between exposure in childhood, adulthood, or repeated events. Another aim of the paper is to evaluate the possible mediation role of cognitive schemas and personality traits in the relationship between early trauma and eating psychopathology.

Methods: From January to November 2020, 115 consecutive inpatients admitted for a specific multidisciplinary ED treatment in a dedicated Unit were evaluated for trauma, differentiating between trauma occurring in childhood and adulthood. The subjects were evaluated for early maladaptive schemas (EMS), personality traits, trauma symptomatology, quality of life, and specific psychopathologies linked to EDs. Mediation analyses between childhood and adulthood trauma and eating psychopathology were performed, with EMS and personality traits as mediators.

Results: Patients with a history of trauma showed higher physical and psychological symptomatology scores, with a more impaired clinical profile in patients with both childhood and adulthood trauma exposure. The mediation analysis showed a specific mediator role for the “disconnection and rejection (DR)” EMS factor in the relationship between childhood trauma (cT) and eating psychopathology.

Conclusion: Trauma experiences are associated with more severe clinical symptomatology in EDs and may need a specific assessment in patients with failed outpatient standard treatments. Specific cognitive schemas linked to DR domain should be evaluated in treatments for ED patients with history of trauma due to the mediation role between trauma and eating psychopathology. The need for outcome studies about treatment approaches for ED patients with history of trauma is discussed.

Mindful Attention and Eating Expectancies among College Students with Obesity and a History of Trauma Exposure

Objectives

Trauma exposure and obesity are highly prevalent among college students and both are associated with disordered eating. There is a need to understand psychological factors that may be related to maladaptive eating behavior among college students with obesity and a history of trauma exposure.

Methods

Participants included 139 college students with obesity (defined as a BMI ≥ 30) and a history of trauma exposure (76.3% females; M _age = 25.4 years, SD = 8.07). The current study conducted three separate two-step hierarchical regressions examining mindful attention, and its relation to eating expectancies (expectancies of eating to help manage negative affect, expectancies of eating to alleviate boredom, and expectancies of eating to lead to feeling out of control).

Results

Results indicated that lower levels of mindful attention were related to greater levels of expectancies of eating to help manage negative affect (b = -4.16, SE = 1.08, p = .023, CI_95% = -7.72, -0.60, sr² = .04), expectancies of eating to alleviate boredom (b = -1.09, SE = 0.39, p = .006, CI_95% = -1.86, -0.32, sr² = .06), and expectancies of eating to lead to feeling out of control (b = -1.62, SE = 0.40, p < .001, CI_95% = -2.41, -0.83, sr² = .11). Results were observed over, and above variance accounted for by sex (assigned at birth), body mass index (BMI), and posttraumatic stress disorder (PTSD) symptom severity.

Conclusions

Overall, the results from the present investigation suggest the potential importance and need for future research in the role of mindful attention in relation to several distinct eating expectancies associated with maladaptive eating.

The utility of college student samples in research on trauma and posttraumatic stress disorder: A critical review

There is a widespread notion of the 'college sophomore problem' in social science research that posits that college student samples are samples of convenience with little generalizability to the general population. To address this concern, we conducted a critical review of the literature on college student samples in trauma research. Specifically, we reviewed how college student samples differ from non-college samples in four key areas of trauma research: (1) exposure rates to potentially traumatic events (PTEs), (2) prevalence of posttraumatic stress disorder (PTSD) symptoms, (3) factor structure of PTSD symptoms, and (4) PTSD's relation with common markers, correlates, and consequences. Lastly, we discussed the value and advantages of using college student samples in trauma research. Results of the critical review indicated similar trends of trauma-related findings (Points 1-4) between college student samples and both U.S. nationally collected and treatment-seeking samples; specifically, we identified a comparable lifetime PTE exposure rate, comparable rates of PTSD, a comparable factor structure of PTSD symptoms, and a comparable pattern of associations between PTSD symptoms and post-trauma markers/correlates/consequences. Although trauma-exposed college student samples are biased in some key areas, they may be no more biased than other commonly used trauma samples (e.g. epidemiological, treatment-seeking). Results of this critical review highlight the need to re-examine potentially unfounded biases on the part of the trauma research community, as well as the need to consider advantages of using college student samples in trauma research.

The Morality of Disordered Eating and Recovery in Southern Italy

Scholars have traced the processes through which moral subjectivities are constituted in culturally meaningful ways through eating disorders and recovery practices, demonstrating how subjective meanings of eating disorders and recovery from them are imbued with moral undertones and become meaningful ways of existing within specific historical and cultural contexts. Drawing on ethnographic insights and interviews with young women with disordered eating histories in southern Italy, we show how suffering from eating disorders and recovery from them enables women to retool their identities and craft moral selves. We draw attention to the value of medical anthropology in the care and comprehension of well-being of girls and women suffering from disordered eating.

Applying Objectification Theory to the Relationship Between Sexual Victimization and Disordered Eating

There is an established relationship between sexual victimization (SV) and disordered eating (DE); however, few theory-based studies exist that adequately examine this relationship. Previous research on objectification theory has insufficiently tested the theory’s application to extreme objectifying experiences such as SV. To address this gap in the literature, we evaluated objectification theory as a means for clarifying the relationship between SV and DE. Specifically, we examined how self-surveillance, a proxy for self-objectification, and two of its psychological correlates, body shame and interoceptive deficits, may clarify the association between SV and DE. Participants were 389 undergraduate women. Path analysis of the model largely supports the application of objectification theory to this relationship but also suggests potential modifications to the theory. Further, the extent to which SV may be uniquely related to DE, above and beyond everyday objectification (e.g., leering, unwanted sexual comments), was explored. Implications are discussed.

Sexual assault victimization and psychopathology: A review and meta-analysis

Sexual assault (SA) is a common and deleterious form of trauma. Over 40years of research on its impact has suggested that SA has particularly severe effects on a variety of forms of psychopathology, and has highlighted unique aspects of SA as a form of trauma that contribute to these outcomes. The goal of this meta-analytic review was to synthesize the empirical literature from 1970 to 2014 (reflecting 497 effect sizes) to understand the degree to which (a) SA confers general risk for psychological dysfunction rather than specific risk for posttraumatic stress, and (b) differences in studies and samples account for variation in observed effects. Results indicate that people who have been sexually assaulted report significantly worse psychopathology than unassaulted comparisons (average Hedges' g=0.61). SA was associated with increased risk for all forms of psychopathology assessed, and relatively stronger associations were observed for posttraumatic stress and suicidality. Effects endured across differences in sample demographics. The use of broader SA operationalizations (e.g., including incapacitated, coerced, or nonpenetrative SA) was not associated with differences in effects, although including attempted SA in operationalizations resulted in lower effects. Larger effects were observed in samples with more assaults involving stranger perpetrators, weapons, or physical injury. In the context of the broader literature, our findings provide evidence that experiencing SA is major risk factor for multiple forms of psychological dysfunction across populations and assault types.

Update on Psychological Trauma, Other Severe Adverse Experiences and Eating Disorders: State of the Research and Future Research Directions

PURPOSE OF REVIEW

This paper provides an updated review of the literature on the relationship between psychological trauma exposure, other severe adverse experiences, and eating disorders.

RECENT FINDINGS

Trauma exposure and other severe adverse experiences (e.g., emotional abuse) in both childhood and adulthood are associated with eating disorders. The relationship between traumatic and other adverse experiences and eating disorders appears to be mediated by emotional and behavioral dysregulation, as well as by cognitive factors such as self-criticism. Biological vulnerabilities may also be relevant to this relationship. Overall, the literature is limited by predominantly cross-sectional designs. There is clear evidence of a correlational relationship between trauma exposure and other severe adverse events, and eating disorders. Both risk and maintenance factor hypotheses have been put forth; however, prospective research testing these hypotheses remains limited. Future research should use prospective designs and focus on trauma-related symptoms (rather than trauma exposure) in order to advance research on risk and maintaining factors for eating disorders and inform treatment directions.

The influence of childhood polyvictimization on disordered eating symptoms in emerging adulthood

Children who endure multiple victimization experiences, or "polyvictims," are vulnerable to maladaptive outcomes. Yet, little research exists evaluating the relationship between childhood polyvictimization and disordered eating symptoms (DES) in emerging adulthood. The current study examines the relationship between childhood polyvictimization and DES in emerging adults. Data were collected from 288 participants across two universities using online self-report measures. Hierarchical regression analyses revealed a significant positive relationship between number of childhood victimization experiences and DES in young adulthood (ß=0.14; p=0.016). Female participants were more likely to demonstrate DES (ß=0.14; p=0.008). Further, high levels of emotion dysregulation during young adulthood were associated with more DES (ß=0.33; p<0.001). Findings suggest that exposure to victimization experiences in childhood increases individuals' risk for exhibiting DES in young adulthood. Results also highlight the strong relationship between individuals' emotion regulation abilities and the presence of DES. Findings align with the theory that children who have endured high levels of victimization often feel overwhelmed by their emotions and circumstances, demonstrate emotion regulation difficulties, and may rely on maladaptive coping strategies, including disordered eating, to manage adversities. Study results emphasize the importance of considering victimization history when working with emerging adults displaying disordered eating symptomatology.

Alcohol and binge eating as mediators between posttraumatic stress disorder symptom severity and body mass index

OBJECTIVE

Sexual-minority women are at elevated risk for obesity, as well as exposure to traumatic events. Rates of obesity are elevated in individuals with posttraumatic stress disorder (PTSD), but little is known about why this relationship exists. Behavioral mechanisms, such as eating patterns and alcohol use, are possible explanations that would be clinically useful to identify.

METHODS

Binge eating and alcohol use were longitudinally investigated as mediators of the relationship between PTSD symptom severity and body mass index (BMI) in a large sample of young-adult, sexual-minority women (N = 425). PTSD symptom severity was assessed at baseline, binge eating and alcohol use were assessed 12 months later, and BMI was assessed 24 months after baseline.

RESULTS

Using a multiple mediator model, higher baseline PTSD symptom severity was found to be significantly associated with higher BMI 2 years later, operating through binge-eating behavior but not through alcohol use. Exploratory moderator analyses found that this effect was higher for those with lower baseline BMI.

CONCLUSIONS

Results suggest that higher PTSD symptoms are longitudinally associated with increased BMI and that binge eating behavior is one factor that explains this relationship.

The Relationship Between Sexual Violence and Disordered Eating

College women who experience sexual violence (SV) and disordered eating (DE) are at risk for comorbid mental health symptomology (depression, somatization) and risky health behaviors (dating status, alcohol use). The purpose of this study is to explore associations of coexisting sexual violence history and disordered eating with mental health and health behaviors in college women. This cross sectional descriptive study is a secondary analysis of survey data from college students from five universities (n = 2747). College women with both SV and DE were more likely to experience increased depressive and somatic symptoms and participate in risky health behaviors.

A systematic review of the existing models of disordered eating: Do they inform the development of effective interventions?

Despite significant advances in the development of prevention and treatment interventions for eating disorders and disordered eating over the last decade, there still remains a pressing need to develop more effective interventions. In line with the 2008 Medical Research Council (MRC) evaluation framework from the United Kingdom for the development and evaluation of complex interventions to improve health, the development of sound theory is a necessary precursor to the development of effective interventions. The aim of the current review was to identify the existing models for disordered eating and to identify those models which have helped inform the development of interventions for disordered eating. In addition, we examine the variables that most commonly appear across these models, in terms of future implications for the development of interventions for disordered eating. While an extensive range of theoretical models for the development of disordered eating were identified (N=54), only ten (18.5%) had progressed beyond mere description and to the development of interventions that have been evaluated. It is recommended that future work examines whether interventions in eating disorders increase in efficacy when developed in line with theoretical considerations, that initiation of new models gives way to further development of existing models, and that there be greater utilisation of intervention studies to inform the development of theory.

Sexual violence, weight perception, and eating disorder indicators in college females

OBJECTIVE

To examine the relationships between sexual violence experiences, inaccurate body weight perceptions, and the presence of eating disorder (ED) indicators in a sample of female US college students.

PARTICIPANTS

Participants were 6,090 college females 25 years of age and younger.

METHODS

A secondary analysis of National College Health Assessment data gathered annually at one institution from 2004 to 2013 was utilized. A model predicting ED indicators was tested using logistic regression analyses with multiple categorical variables representing severity of sexual violence, accuracy of body weight perception, and an interaction between the two.

RESULTS

Sexual violence and inaccurate body weight perception significantly predicted ED indicators; sexual violence was the strongest predictor of purging behavior, whereas inaccurate body weight perception was best predicted by underweight status.

CONCLUSIONS

Findings provide support to the relationship between purging behavior and severity of sexual violence and also to the link between inaccurate body weight perception and being underweight.

The relationship between eating disorders and sexual trauma

Research aimed at understanding the causes and comorbidities of eating disorders (ED) identifies sexual trauma as one potential pathway to the development and maintenance of eating disorders. Based on current literature, there are two main etiological pathways between sexual trauma and ED-body perceptions and psychological difficulties. However, previously published reviews on this topic are outdated and have not yielded consistent findings. Therefore, authors completed a literature review covering years 2004-2014 to examine the relationship between sexual trauma and ED according to both proposed pathway models. Authors utilized PubMed, GoogleScholar, and PsychINFO as search engines. Search terms included "sexual assault", "sexual abuse", "sexual trauma", and "rape" in conjunction with relevant ED terminology. Thirty-two studies met inclusion criteria for this review. Current data indicate an increased prevalence of sexual trauma for individuals with ED. Although limited, recent evidence suggests that sexual trauma precedes and contributes to the development of ED. Existing literature indicates that the body perceptions pathway may impact ED through body dissatisfaction, shame, sexual dysfunction, and fear of future sexual trauma. The psychological difficulties pathway indicates a link between ED and the desire to cope with the failure of the average expected environment, psychological diagnoses, the need for control, and the regulation of emotions. However, further research is needed to assess the potential causal role that sexual trauma may play in the etiology of ED.