As early as 1912, Max Wertheimer reported in his famous paper on Gestalt psychology that two individual shapes may be perceived as a moving object if they are presented one after the other within a short time span. This phenomenon is called apparent motion. If the two shapes are presented consecutively in a time window between 30-60 ms (e.g. 40 ms), then this leads to a perceptual ambiguity in terms of sensory perception. Although the visual stimulus remains identical, it is perceived differently in different trials. This study focuses on why the stimuli are perceived differently by the same participants, and how this ambiguity arises. To answer this research question, we investigate the neuronal processing during the perception of apparent motion on a sensor and network level using MEG (Magnetoencephalography).