Fig. 4.

Analysis of eye-tracking data. (A) Data are shown for older (top) and younger (bottom) adults separately. The left side shows data for all cue types. The y-axis shows the x-position of the eye tracker, with 0 being completely centre. The right side shows data for the size of the difference in x position between left and right cues, for both the short and the long interval. All data are plotted with the 95% confidence interval (shaded area). Note that the (grey) confidence interval of the difference line overlaps with the zero crossing, indicating that there was no significant difference in the size of horizontal eye movements between short and long cues. (B) Results for older and younger participants, averaged across short and long cues, for the difference between left and right cues. Note that the (grey) confidence interval of the difference line overlaps with the zero crossing, indicating that there was no significant difference in the magnitude of horizontal eye movements between older and younger adults.