Experiment 3: stimuli and results.

<p>a. Pairs of auditory and visual stimuli presented in Experiment 3. b. Psychometric functions describing performance on synesthetically congruent (continuous line) and incongruent (dashed line) conditions in Experiment 3. c. Bagplot <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0005664#pone.0005664-Rousseeuw1" target="_blank">[39]</a> of participants' sensitivity (JNDs) on congruent vs. incongruent trials. d. Participants' sensitivity (JNDs), on congruent and incongruent trials in Experiment 3.