As mentioned in methodology, eye tracking statistics we considered were trial durations for both study and drawing part, the average duration of the fixations and the number of fixations per second for only study part of the task.
Trial durations
We assessed the trial durations for memory task in two aspects; study time of the map stimulus, and the drawing time of the sketch map. Figure 15 illustrates a general overview of study and drawing performances of participants regarding four main groups. The graph clearly shows that drawing took approximately twice -or in some cases more than twice- time as studying did for every user group.T