The invention relates to a method for monitoring an occupant (2) of a vehicle (1), in which method the geographical position of the vehicle (1) is detected and a viewing direction (3) of the occupant (2) is detected by means of an eye-tracking device (8). The method according to the invention is characterised in that: a data store (15) is accessed in which objects (5) and geographical positions associated therewith are stored; it is determined, on the basis of the detected geographical position of the vehicle (1), whether one of the objects (5) is located in the vicinity of the vehicle (1); and it is determined, depending on the detected viewing direction (3) of the occupant (2), the detected geographical position of the vehicle (1), and the geographical position of the determined object (5) in the vicinity of the vehicle (1), whether the object (5) in the vicinity of the vehicle (1) has been perceived by the occupant (2). The invention also relates to an apparatus for monitoring an occupant (2) of a vehicle (1) and to a system for analysing the perception of objects (5) in a traffic space comprising a plurality of vehicles (1) which comprise such an apparatus.
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