Figure 1 : Experimental design.

From: McGurk illusion recalibrates subsequent auditory perception

Figure 1

An audiovisual or auditory stimulus was presented on the screen for one second followed by a fixation cross period in which participants pressed a button to indicate whether they heard ‘aba’, ‘ada’ or ‘aga’ (three alternative forced choice; 3AFC). The next trial appeared after 4.5 to 6.5 seconds.