• Dynamic visual stimuli induce a more salient illusion than their static counterparts. • This may help explain the striking contrast between the original illusion (Schutz & Lipscomb, 2007) and the literature on audio-visual integration, which generally reports visual dominance in such tasks. • At this time we are still unsure why blocking structure plays such a key role, and plan to investigate this in subsequent experiments. Stimuli • Two classes of visual stimuli: • dynamic dots (illustrating movement outlined in Fig. 2) • static dots (stationary dots lasting 500 or 1000 ms). • Participants were instructed to indicate perceived note duration of the heard sound, ignoring visual information • Sounds were pure tones synthesized with piano-like amplitude envelopes (i.e. exponentially decaying immediately after onset completion)