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Obesity is a major health concern, characterized by an automatically activated tendency to (over)-eat. Recent research suggests that an effective way to counteract automatic approach tendencies in unhealthy consumption behavior might be approach bias modification. Therefore, we investigated an approach-avoidance training for unhealthy food cues in 189 patients with obesity of a psychosomatic inpatient clinic who were participating in a nutrition advice program. Patients in the active training group were trained to make avoidance movements (pushing a joystick) in response to unhealthy food pictures and approach movements (pulling the joystick) in response to positive pictures, while the control group received sham training (approaching and avoiding both picture types). Approach-avoidance bias, body mass index, eating pathology and food-specific implicit associations were assessed before and after the training. In line with our hypothesis, approach-avoidance bias improved in the active training group after the training, in comparison to the sham training group. Moreover, this effect generalized to new, untrained stimuli. However, no effects of the training were found in a food-specific Single-Target Implicit Association Test, or on eating pathology questionnaires or body mass index. While the training results are promising, the effect of approach-avoidance bias modification on relevant behavior in obesity has yet to be established before it may be implemented as an add-on treatment.

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Lower skill levels are associated with higher comorbidity and higher level of psychopathology of patients. There is evidence for specific skill profiles within different clinical subsamples. The improvement of skills that can impact recovery from mental disorders is especially relevant for patients with multiple diagnoses. It makes sense to assess the different skills independently and consider them separately when planning interventions.