58‐1: Influence of Temporal Frequency, Duty Ratio, and Eye‐Stimulus Dynamics on Motion Artifacts

Motion artifacts—perceived discrepancies between displayed and natural images of motion stimuli—are influenced by display properties and their interaction with eye movements. Hoffman et al. (2014) proposed that a shorter duty ratio reduces motion artifacts when the eyes pursue a moving target. However, a recent study (Han et al., 2024) found that a longer duty ratio reduces motion artifacts when the eyes move while the stimulus remains static. This study examined the interactive effects of display temporal properties and eye‐stimulus dynamics on motion artifacts. In Experiment 1, motion artifacts were measured across a wide range of refresh rates and duty ratios under two eye movement conditions. Results showed that higher temporal frequencies consistently reduced motion artifacts, while the effect of duty ratio depended on eye movement conditions. Experiment 2 investigated how speed differences between eye and stimulus movements influenced motion artifacts. Participants preferred a shorter duty ratio when eye and stimulus speeds were closely matched but favored a longer duty ratio in other cases. These findings provide reference data for practical applications, helping to predict motion artifact magnitude.