Behavioral interference and modeled proportion of capture as a function of salience difference.

<p>(a) Empirical RT interference, averaged across participants, represents the RT difference, in ms, between distractor-present and distractor-absent trials. Salience difference, averaged across participants, was derived from detection times in the baseline salience measurement requiring a simple target-present vs. target-absent decision (see <i>Methods</i> of <i>Behavioral reaction time experiment</i>). Negative x-values indicate distractors less salient, and positive x-values distractors more salient than the target. Dots represent mean values of RT interference for each salience difference condition (<i>n</i> = 25); arrows indicate the associated standard errors. Red dots indicate significant RT interference by distractors significantly less salient than the target (t-tests: <i>p</i><.05). Solid curve: regression function curve <i>R₂</i>. (b) Proportion of capture in the distraction experiment was predicted by salience difference, derived from fitting empirical salience difference values. Again, dots represent mean values of RT interference for each salience difference condition (<i>n</i> = 25). The curve depicts the nonlinear relationship according to <i>R</i>₂.