Stimuli and Response Distributions of the Partial Cueing Experiment

<p>The left panels show examples of the stimuli used. In the cue size 1 condition (top left panel), 16 elements were displayed and a 2-pixels-thick outlining circle of 1.5° diameter precued (100% valid) the target location, which was randomly set trial by trial. In the cue size 16 conditions, all the patch stimuli were precued. The other four panels show the response distributions for target tilts around threshold for two naive observers, AV (middle panels) and MF (left panels), for the two cueing conditions. The circles represent the proportion of reported responses for each response probe, while the error bars show an estimate of standard error of the means computed by a bootstrap [<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0040056#pbio-0040056-b030" target="_blank">30</a>] procedure with 1,000 iterations. Although the display has drastically changed, the pattern of results is strictly consistent with that reported in<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0040056#pbio-0040056-g003" target="_blank">Figures 3</a> and<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0040056#pbio-0040056-g005" target="_blank">5</a>, suggesting that the main effect of this study is not due to sensory interactions, or “crowding,” among abutting stimuli.