Figure 3

Relating attentional focus, as measured by phasic pupil response, to visual search performance.

Results of a binomial logistic model of search data (over both groups, for set size 9/13) using only phasic pupil response as a factor. Summary data is shown to visualise the quality of the fit. These data points reflect mean pupil dilation and performance taken over sets of trials quartiled based on pupil diameter (percentile boundaries of 0.25, 0.50, 0.75; black symbols; error bars reflect standard errors of the mean; about 50 trials per data point). Two outlying quantiles are shown to visualise the tails (percentiles of 0.025 and 0.975; light gray symbols; error bars reflect standard errors; 5 trials per data point).