Observed mean RTs for the individual subjects and stimuli in Experiment 1. Error bars represent one standard error. Left panels show the results for the target-category stimuli and right panels show the results for the contrast-category stimuli. Left panels: L = low-salience dimension value, H = high-salience dimension value, D1 = Dimension 1, D2 = Dimension 2. Right panels: R = redundant stimulus, I = interior stimulus, E = exterior stimulus.