Interoceptive signals

In this project, our department investigates the influence of expectations on the processing of internal body signals. To explain this influence, we rely on the theory of predictive coding. The core statement of this theory is that individual perception is structured and oriented according to one's own experience-based models (or expectations). Following the theory, the information processing system is always engaged in matching sensory input signals and internal predictive models. According to the model, there can be either a match or a mismatch between prediction and actual input. In case of a discrepancy, a so-called "prediction error" occurs, which, if not detected by the system, can lead to distortions in perception and information processing. This can have a particularly negative effect on an individual when processing internal body (interoceptive) signals such as pain. Numerous studies have already established a link between psychopathological disorders (e.g. depression, anxiety disorders or eating disorders) and distortions in interoceptive perception. The aim of our project is to gain insight into the underlying cognitive and neural processing mechanisms by systematically investigating the influence of expectations on interoceptive perception. Further findings in this area may shed light on the pathogenesis of mental disorders as well as provide long-term implications for therapeutic treatment.

Contact: Thomas Weiß & Ilona Croy