Fig. 13.

Observers were asked to report how many bars they saw displayed. Multiple bars (between 0 and 4) were displayed simultaneously around the saccadic target, at some or all of four possible positions: 1, 7, 13, and 19°. The number of bars, the positions to which they were displayed, and the display time were randomized (except that 4 bars was more frequent than the other possibilities). The results show that there were no false-positives (zero bars were always reported as such), and single bars were always seen, irrespective of their position. However, multiple bars tended to be grossly underestimated when displayed during the interval near the start of each saccade; they tended to collapse to a single bar.