Figure 5.

Average scatter of landing locations (bivariate area in degrees squared) across subjects and trials for each viewing condition (audio only, captions only, neither captions nor audio, and captions + audio) based on saccades in the video area of the display (top of display down to about 140 min arc below screen center) for all videos (top panel), for data from Earth the Biography: Volcanoes (middle panel), and for data from the entire display while subjects viewed Earth the Biography: Volcanoes (bottom panel). Error bars represent ±1 standard error. Each mean in the top panel is based on 24 trials and each mean in the middle and bottom panel is based on six trials.