| Predictable models of eye movement are evaluated using behavioral experiments with eye recording when observers watch videos; often, videos are played without audio tracks. In this study, we tested the infuence of a video audio track on eye movement. We set up an experiment in which 31 participants were eye-tracked while watching fifty short videos (from 10 to 60 seconds). Half of the videos were played with their original audio tracks and the other half were played without any sound. The choice of video extract was restricted: we chose videos with only one particular visual attribute (people, dynamic object or landscapes) and one particular sound (voices, moving object noise or music). Therefore, a video belongs to one of nine categories: for example a portrait with music or a moving object with voice. On average, for the different categories, sound did not modify either the eye position of the participants or the dispersion between the participants eye positions. We did not observe what might be surmised: that dispersion between observers eye position should be smaller when videos are played with their original audio track. Further analysis needs to be done on other eye movement parameters such as eye saccade amplitudes and fixation durations. |
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