The invention relates to a method for testing a sensor system (11), which is configured to detect a head position, a head movement and/or a facial movement of a vehicle occupant in a vehicle. For this purpose a humanoid artificial head (1) as well as an animation device (5) are provided. The animation device (5) performs predetermined head and/or facial movements of the artificial head (1). Thus the artificial head (1) is designed to be animatronic. These predeterminable movements of the artificial head (1) are detected by the sensor system (11). Due to the uniformity and exact reproducibility of the head and/or facial movements the sensor system (11) can be tested, developed and improved as a head tracking system without the use of test persons. Disadvantageous effects due to the use of test persons, such as for example no identical head and/or facial movements, can be minimised by the artificial head (1). The artificial head (1) can be represented by an artificial skin (10) in a visually realistic or aesthetically pleasing manner.
