Figure 2.

Results of experiment 1 for 5 observers with VSS and means. Time until the snow re-appeared (gray) and regained full strength (black) is plotted as a function of adapter duration. Error bars are plus or minus one standard error of the mean for each condition within participants. Individual trials are shown in light markers and means are shown with darker markers. For plot of the mean data in this figure and Figures 3 and 4, error bars are corrected for consistent across participant differences as is appropriate for a within-subjects design.²⁸