F50.2 F45.2
Conditions
Interventions
Group 1: Experimental condition - Body checking, i.e. visual and tactile inspection of the body with two utensils each, guided by tape (i.e. BN: full body mirror and tape measure
KDS: full body and hand mirror, KAS: blood pressure monitor and magnifying glass).
Group 2: Control condition - detailed observation of a vase with many haptic and visual details, guided by a tape rec
Sponsors
Universität Osnabrück
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
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
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)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 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: 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). The peripheral physiological parameters of heart rate/heart rate variability and skin conductance are recorded continuously and evaluated in five-minute sequences. | — |
Secondary
| Measure | Time frame |
|---|---|
| Baseline measures (collected as part of the overall project): ICD-10 Symptom Rating (ISR, Tritt et al., 2008), Rosenberg Self-Esteem Scale (RSES; von Collani & Herzberg, 2003), Negative Emotionality subscale of the Big Five Inventory (BFI-2; Danner et al., 2019) and Patient Health Questionnaire-9 (PHQ-9; Löwe et al., 2002), Eating Disorder Examination-Questionnaire (EDE-Q; Hilbert & Tuschen-Caffier, 2006), Body Dysmorphic Symptoms Questionnaire (FKS; Buhlmann et al., 2009), Whiteley Index (WI; Glöckner-Rist, Barenbrügge, & Rist, 2014),Catastrophizing Rating subscale of the Body and Health Questionnaire (FKG; Hiller et al., 1997), Uncertainty Intolerance Questionnaire (UI-18; Gerlach, Andor & Patzelt, 2008), Body Checking Questionnaire (BCQ; Vocks, Moswald & Legenbauer, 2008), Urgency subscale of the UPPS Impulsive Behaviour Scale (Schmidt et al., 2008), Extent of Goal Attainment Questionnaire (Hartmann et al., 2019). Telephone screening: Diagnostic Brief Interview for Mental Disorders (Mini-DIPS, Margraf & Cwik, 2017) Laboratory diagnostics: Categorical assessment of the main diagnosis and comorbid symptomatology or absence of a diagnosis (for the control group) by Diagnostic Interview in Mental Disorders (DIPS, Margraf et al., 2021); brief interview on checking behaviours | — |
Countries
Germany
Contacts
Public ContactVanessa Opladen
Universität Osnabrück, Institut für Psychologie, Fachgebiet Klinische Psychologie u. Psychotherapie
Outcome results
None listed