Figure 1.

Probing transsaccadic working memory. a, Experimental configuration of Experiment 1A. While fixating (dotted red circle) a cross, participants were presented with a presaccadic display consisting of three colored disks. When the fixation cross jumped, they were required to saccade to its new position on the opposite side of the display. On PRE+POST trials, the colors were shifted a small distance in color space during this saccade; participants were unaware of these changes. This postsaccadic display was followed by a blank display, then one item location was indicated, and participants reported the color they remembered at that location. Note that there was no postsaccadic display in the PRE condition; instead, the blank interval started as soon as the saccade was detected. b, The color space. Arrows correspond to the CCW color shift illustrated in a. c, Frequency distributions of the discrepancy between the reported and presaccadic colors, for conditions with PRE+POST saccadic displays. Different plots show the three different item positions. Zero corresponds to the presaccadic color and dashed lines correspond to postsaccadic colors. Solid lines indicate the medians of the two response distributions (orange = CW shift; red = CCW shift). Increasing separation of the two distributions, left to right, indicates increasing bias toward the postsaccadic color. d, Response bias as a function of item position for the different postsaccadic display durations (PRE+POST condition with color change). Dashed lines correspond to presaccadic and postsaccadic colors. e, Response variability for conditions with PRE+POST displays, when item colors shifted during the saccade. f, Response variability as a function of item position for conditions with PRE+POST displays presenting the same color (red) or with presaccadic display only, when the observer maintained fixation at fix1 (light blue) or made an eye movement from fix1 to fix2 (dark blue). Error bars indicate ± 1 SE.