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Anorexia Nervosa and Somatoform Dissociation: A Neglected Body-Centered Perspective
Paola Longo1, Enrica Marzola1, Matteo Martini1
1Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy.
Summary
Patients with anorexia nervosa (AN) show higher somatoform dissociation (SomD) and psychoform dissociation (PsyD), especially in the binge-purging subtype (BP-AN). SomD is linked to greater eating concerns and trauma history.
Area of Science:
- Psychiatry
- Clinical Psychology
- Eating Disorders Research
Background:
- Dissociation is prevalent in anorexia nervosa (AN), with higher rates in binge-purging AN (BP-AN) than restricting AN (R-AN).
- The distinction between somatoform dissociation (SomD) and psychoform dissociation (PsyD) in AN requires further investigation.
- Understanding these dissociative subtypes is crucial for targeted treatment approaches in eating disorders.
Purpose of the Study:
- To investigate differences in SomD and PsyD between AN subtypes (BP-AN vs. R-AN).
- To compare eating-related, general, and body-related psychopathology, and childhood trauma across AN subtypes and dissociation levels.
- To characterize a subgroup of AN patients with marked SomD, controlling for PsyD and AN subtype.
Main Methods:
- A cohort of 111 inpatients with AN completed self-report questionnaires.
- Assessments included measures of dissociation (SomD, PsyD), eating, body-related, and general psychopathology, and childhood trauma.
- Statistical analyses compared groups based on AN subtype and presence/absence of SomD, controlling for PsyD.
Main Results:
- BP-AN patients reported significantly higher SomD and PsyD, alongside more severe psychopathology, compared to R-AN patients.
- The SomD group exhibited greater eating concerns, trait-anxiety, body-related issues, and a history of sexual/physical abuse than the no-SomD group.
- These findings persisted independently of AN subtype and PsyD symptoms, highlighting unique features of SomD in AN.
Conclusions:
- Anorexia nervosa patients, particularly the BP-AN subtype, exhibit significant somatoform and psychoform dissociation.
- Somatoform dissociation in AN is associated with heightened eating concerns, anxiety, body image issues, and a history of trauma.
- Clinical assessment should evaluate both SomD and PsyD, especially in patients with trauma histories, to inform dissociation-informed interventions.
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