TY  - JOUR
A1  - Mai, Sandra
A1  - Gramann, Klaus
A1  - Herbert, Beate M.
A1  - Friederich, Hans-Christoph
A1  - Warschburger, Petra
A1  - Pollatos, Olga
T1  - Electrophysiological evidence for an attentional bias in processing body stimuli in bulimia nervosa
JF  - Biological psychology
N2  - Empirical evidence suggests abnormalities in the processing of body stimuli in bulimia nervosa (BN). This study investigated central markers of processing body stimuli by means of event-related potentials in BN. EEG was recorded from 20 women with BN and 20 matched healthy controls while watching and evaluating underweight, normal and overweight female body pictures. Bulimics evaluated underweight bodies as less unpleasant and overweight bodies as bigger and more arousing. A higher P2 to overweight stimuli occurred in BN only. In contrast to controls, no N2 increase to underweight bodies was observed in BN. P3 was modulated by stimulus category only in healthy controls; late slow waves to underweight bodies were more pronounced in both groups. P2 amplitudes to overweight stimuli were correlated with drive for thinness and body dissatisfaction. We present novel support for altered perceptual and cognitive-affective processing of body images in BN on the subjective and electrophysiological level. (C) 2015 Elsevier B.V. All rights reserved.
KW  - Bulimia nervosa
KW  - Body image
KW  - Body stimuli
KW  - ERP
KW  - P2
KW  - Slow positive wave
Y1  - 2015
U6  - https://doi.org/10.1016/j.biopsycho.2015.03.013
SN  - 0301-0511
SN  - 1873-6246
VL  - 108
SP  - 105
EP  - 114
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schlegl, Sandra
A1  - Dittmer, Nina
A1  - Hoffmann, Svenja
A1  - Voderholzer, Ulrich
T1  - Self-reported quantity, compulsiveness and motives of exercise in patients with eating disorders and healthy controls
BT  - differences and similarities
JF  - Journal of eating disorders
N2  - Background: Compulsive exercise (CE) is a frequent symptom in patients with eating disorders (EDs). It includes, in addition to quantitatively excessive exercise behaviour, a driven aspect and specific motives of exercise. CE is generally associated with worse therapy outcomes. The aims of the study were to compare self-reported quantity of exercise, compulsiveness of exercise as well as motives for exercise between patients with anorexia nervosa (AN), bulimia nervosa (BN) and healthy controls (HC). Additionally, we wanted to explore predictors of compulsive exercise (CE) in each group. Methods: We investigated 335 female participants (n = 226 inpatients, n = 109 HC) and assessed self-reported quantity of exercise, compulsiveness of exercise (Compulsive Exercise Test), motives for exercise (Exercise Motivations Inventory-2), ED symptoms (Eating Disorder Inventory-2), obsessive-compulsiveness (Obsessive-Compulsive Inventory-Revised), general psychopathology (Brief Symptom Inventory-18) and depression (Beck Depression Inventory-2). Results: Both patients with AN and BN exercised significantly more hours per week and showed significantly higher CE than HC; no differences were found between patients with AN and BN. Patients with EDs and HC also partly varied in motives for exercise. Specific motives were enjoyment, challenge, recognition and weight management in patients with EDs in contrast to ill-health avoidance and affiliation in HC. Patients with AN and BN only differed in regard to exercise for appearance reasons in which patients with BN scored higher. The most relevant predictor of CE across groups was exercise for weight and shape reasons. Conclusions: Exercise behaviours and motives differ between patients with EDs and HC. CE was pronounced in both patients with AN and BN. Therefore, future research should focus not only on CE in patients with AN, but also on CE in patients with BN. Similarities in CE in patients with AN and BN support a transdiagnostic approach during the development of interventions specifically targeting CE in patients with EDs.
KW  - Anorexia nervosa
KW  - Bulimia nervosa
KW  - Eating disorders
KW  - Compulsive exercise
KW  - Motives for exercise
KW  - Inpatient
KW  - Predictor
KW  - Healthy controls
Y1  - 2018
U6  - https://doi.org/10.1186/s40337-018-0202-6
SN  - 2050-2974
VL  - 6
PB  - BMC
CY  - London
ER  -