Comparative investigation of the cognitive, affective and physiological consequences of body checking in bulimia nervosa, body dysmorphic disorder and illness anxiety disorder: a laboratory experimental study

Not Applicable

Recruiting

• Conditions: F50.2; F45.2; Bulimia nervosa; Hypochondriacal disorder

• Registration Number: DRKS00025780
• Lead Sponsor: niversität Osnabrück

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2021-07-06
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 150

Inclusion Criteria

•Age (18-65 years)
•For the experimental groups: Presence of one of the three mental disorders (bulimia nervosa, body dysmorphic disorder or illness anxiety disorder), as determined by a standardised diagnostic interview (DIPS) (presence of a comorbid disorder is not an exclusion criterion as long as two of the focal disorders are not present at the same time).
•For the control group: currently no mental disorder (according to DIPS) and none of the three focal disorders in the past

Exclusion Criteria

•Participants with acute suicidal tendencies
•Participants with acute self-harm
•Participants with substance dependence
•Alcohol consumption 24 hours prior to the experiment
•Significant physical illness (diabetes, thyroid disease, coronary heart disease)

Study & Design

• Study Type: interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
State measurements of emotion, cognition and disorder-specific pathology in all groups at 10-minute intervals, i.e. before, during and after instructed body checking:<br><br>Self-Assessment Manikin for Arousal and Valence (SAM; Bradley & Lang, 1994), five segregated items from the Positive and Negative Affect Schedule (PANAS-X; Röcke & Grühn, 2003), scale assessing the extent of worry in relation to the main apprehension (Worry Scale), questionnaire on the extent of goal attainment in Body Checking (Hartmann et al., 2019), and one disorder-specific item each from the Body Image State Scale (BISS, Cash et al., 2002), the Body Dysmorphic Symptoms Questionnaire (FKS; Buhlmann et al., 2009) and the modified version of the Short Health Anxiety Inventory (mSHAI; Bailer et al., 2013) (time criterion adjusted).<br><br>The peripheral physiological parameters of heart rate/heart rate variability and skin conductance<br>are recorded continuously and evaluated in five-minute sequences.<br>