What Does the Research Show About Dissociation and Eating Disorders?
The association between dissociation and eating disorders is well-documented in the clinical literature. Studies using the Dissociative Experiences Scale (DES) — a validated self-report questionnaire used to screen for dissociative symptoms — have consistently found elevated dissociation in individuals with eating disorders compared to the general population. Research has shown that dissociation is particularly prevalent in individuals with bulimia nervosa and binge eating disorder, where binge eating behavior is often preceded or accompanied by a dissociative state.
A key finding in the research is the role of negative affect in triggering dissociation and binge eating behavior. Individuals with eating disorders often report that negative emotions, such as anxiety, shame, or sadness, trigger both dissociative symptoms and urges to engage in eating disorder behaviors. The relationship between dissociation and binge eating is thought to be bidirectional: negative affect triggers dissociation, which in turn triggers binge eating, which then leads to more negative affect and further dissociation.
Dissociation in eating disorders can be measured using tools such as the Dissociative Experiences Scale and somatoform dissociation questionnaires. Somatoform dissociation refers to physical symptoms of dissociation, such as unexplained pain or numbness, while psychoform dissociation refers to the mental symptoms, such as amnesia, depersonalization, and derealization. Both types of dissociation are commonly found in individuals with eating disorders, particularly those with a history of trauma.
How Does Childhood Trauma Contribute to Dissociation in Eating Disorders?
Childhood trauma is a significant risk factor for both dissociation and eating disorders. Traumatic experiences can lead to the development of dissociative coping mechanisms as a way to survive overwhelming events. When these coping mechanisms persist into adulthood, they can contribute to the development of an eating disorder. The eating disorder itself can become a way to manage the emotional dysregulation and dissociative symptoms that result from trauma.
The relationship between trauma and dissociation is a key area of focus in the treatment of co-occurring eating disorders and dissociative symptoms. Research shows that women with eating disorders who have a history of childhood trauma have significantly higher levels of dissociation than those without trauma histories. This highlights the importance of addressing trauma in eating disorder treatment. Traumatic experiences such as physical, sexual, or emotional abuse can disrupt the normal development of emotional regulation skills, leading to the use of dissociation and disordered eating as maladaptive coping strategies.
What Are the Types of Dissociation Seen in Eating Disorders?
Dissociation in eating disorders can manifest in several distinct ways. Depersonalization involves a feeling of being detached from one’s own body or mental processes — an individual might feel like they are an outside observer of their own life. Derealization involves a sense of the world around being unreal or dreamlike. Amnesia refers to gaps in memory, particularly for traumatic events or eating disorder behaviors. Identity alteration is a more severe form of dissociation where an individual may experience shifts in their sense of self or identity, which can be associated with a dissociative disorder such as Dissociative Identity Disorder.
The diagnostic and statistical manual of mental disorders (DSM-5) classifies dissociative disorders as a distinct category of mental disorders, separate from eating disorders. However, dissociative symptoms can be present across a range of mental disorders, including eating disorders, borderline personality disorder, and post-traumatic stress disorder. The presence of a dissociative disorder alongside an eating disorder significantly complicates treatment and requires a specialized, integrated approach.
Dissociation and Binge Eating: Breaking the Cycle
The relationship between dissociation and binge eating is one of the most clinically significant findings in the eating disorder research literature. Many individuals with binge eating disorder and bulimia nervosa report entering a trance-like state during a binge, where they feel disconnected from their actions and their bodies. This dissociation and binge eating cycle can make it extremely difficult to interrupt the behavior, as the individual is not fully present in the moment.
Breaking the cycle of dissociation and binge eating requires developing awareness of the triggers that lead to dissociation, building emotional regulation skills to manage negative affect without dissociating, and developing a more connected, embodied relationship with one’s body. At Eating Disorder Solutions, our clinical team works with each patient to identify their unique dissociation triggers and develop personalized strategies for managing them. People with eating disorders who also experience significant dissociation often require a higher level of care, such as residential treatment, to safely address both conditions simultaneously.
Dissociation, Trauma, and Eating Disorder Psychopathology
The intersection of trauma dissociation and eating disorder psychopathology is a complex area of clinical research. Studies show that elevated dissociation is associated with greater severity of eating disorder symptoms, including more frequent binge eating episodes, more severe restriction, and higher levels of anxiety disorders and mood disorders. Patients with eating disorders who have a history of childhood sexual abuse or other early trauma show significantly higher dissociation scores on the Dissociative Experiences Scale compared to those without trauma histories.
Dissociative phenomena in eating disorders have been studied extensively, with a systematic review of the literature confirming that dissociation is a transdiagnostic feature present across all eating disorder diagnoses. Research suggests that dissociation may increase the severity of binge eating symptoms by reducing inhibitory control and increasing loss of control over eating. Dissociative states during binge eating episodes are associated with greater shame, guilt, and negative affect afterward, perpetuating the cycle of disordered eating.
Trauma and eating disorders are deeply intertwined. They share common neurobiological pathways, including dysregulation of the stress response system and disruptions in the brain’s reward circuitry. Physical or sexual abuse in childhood is a particularly strong predictor of both dissociation and eating disorder development. The link between traumatic experiences and eating disorders is mediated in part by dissociation — trauma exposure leads to dissociative coping, which in turn increases vulnerability to disordered eating behaviors.
How Are Dissociation and Eating Disorders Treated Together?
At Eating Disorder Solutions, we recognize the deep connection between trauma, dissociation, and eating disorders. Our treatment approach is trauma-informed, meaning that we understand and respond to the impact of trauma on our clients’ lives. We utilize a range of therapeutic modalities to address dissociation and trauma in eating disorder treatment.
Trauma-focused therapies such as EMDR (Eye Movement Desensitization and Reprocessing) and Somatic Experiencing help individuals process traumatic experiences and reduce dissociative symptoms. Dialectical Behavior Therapy (DBT) provides skills for emotional regulation and distress tolerance, which can reduce the need for dissociation as a coping mechanism. Cognitive Behavioral Therapy (CBT) helps individuals identify and challenge the negative thoughts and beliefs that fuel both dissociation and disordered eating. By addressing the root cause of the dissociation — often unresolved trauma — we can help clients develop healthier coping mechanisms and reduce their reliance on eating disorder behaviors.
| Feature | Psychoform Dissociation | Somatoform Dissociation |
| Definition | Mental disconnection from thoughts, feelings, or identity | Physical symptoms without clear medical cause |
| Symptoms | Amnesia, depersonalization, derealization | Unexplained pain, numbness, sensory changes |
| Assessment Tool | Dissociative Experiences Scale (DES) | Somatoform Dissociation Questionnaire (SDQ) |
| Link to Eating Disorders | Strong — especially in binge/purge behaviors | Moderate — often linked to body image disturbance |
| Trauma Connection | Strongly associated with childhood trauma | Strongly associated with physical/sexual abuse |
| Treatment Approach | EMDR, CBT, trauma-focused therapy | Somatic Experiencing, body-based therapies |
Frequently Asked Questions
What is the difference between psychoform and somatoform dissociation?
Psychoform dissociation refers to the mental symptoms of dissociation, such as amnesia, depersonalization, and derealization. Somatoform dissociation involves physical symptoms that lack a clear medical explanation, such as unexplained pain, numbness, or sensory changes. Both types can be present in individuals with eating disorders, particularly those with a history of trauma.
What is the Dissociative Experiences Scale?
The Dissociative Experiences Scale (DES) is a self-report questionnaire used to screen for dissociative symptoms. Research using the Dissociative Experiences Scale has consistently found elevated levels of dissociation in individuals with eating disorders, particularly those with a history of childhood trauma.
How does binge eating relate to dissociation?
Binge eating behavior is strongly associated with dissociation. Many individuals report entering a trance-like state during a binge, where they feel disconnected from their actions and their bodies. This dissociation and binge eating cycle is driven by negative affect — the individual dissociates to escape from overwhelming emotions, and the binge eating behavior occurs during this dissociative state.
Can dissociation be treated alongside an eating disorder?
Yes. Trauma-informed eating disorder treatment that addresses dissociation simultaneously is the most effective approach. At Eating Disorder Solutions, our clinical team is trained in trauma-focused therapies that address both conditions. Early intervention and integrated treatment significantly improve outcomes for people with eating disorders and dissociation.
If you are struggling with an eating disorder and dissociation, you are not alone. The compassionate team at Eating Disorder Solutions is here to help. Call us at 855-245-0961 to learn more about our trauma-informed treatment programs and begin your journey to healing.
