Using Eye Tracking to Investigate Understandability of Cardinal Direction

The purpose of this study is examining the eye movements of the understandability of cardinal direction. Specifically we give task to participants, which is to look north shown in each cardinal direction. In addition we were measuring the eye movement of until the reaction time for each cardinal direction. As a result, In the case of reaction time, the RTs increased with increasing design elements and number of bearing. In addition, the only one point (N) cardinal direction is faster than eight cardinal directions. The eye movement case of, our results demonstrate eye is fixed on the corner of the shape, character part, crossover point. Only the letter North (N) eye movement is simple, but if there were four pointers indicating four directions, the fixation point is round and round traveling around. So, understandability cardinal direction is small in range for gaze. From this fact, when checking the cardinal direction clarity was confirmed differ by the presence or absence of character information.