Repetition effects in task-driven eye movement analyses after longer time-spans

ABSTRACTVisualizations are an important tool in risk management to support decision-making of recipients of risk reports. Many trainings aim at helping managers to better understand how to read such visualizations. In this paper we present first results of an ongoing large study on the effect of repeated presentation of risk visualizations from annual reports. This is of importance to find out if such repetitions have an effect on accuracy and the behavior of readers. Contrary to other studies we had longer time-spans of months and weeks between two trials. We found that fixation durations are different after second presentation and that the number of fixations generally are lower. We also analyzed scan paths, indicating that regions that are more semantically meaningful are more often in the center of attention. We call for more studies with longer time spans between two trials as we found some interesting patterns.