Table 3.

Statistics of the strength of illusion ‘questionnaire’ for the synchronous horizontal (syncH), predictive vertical (predV), predictive vertical control (predVC) and predictive horizontal (predH) condition

Condition 1	Median	Condition 2	Median	p	pbonf
syncH	3	predV	2	< 0.001	0.006
syncH	3	predH	1	< 0.001	0.001
syncH	3	predVC	− 2	< 0.001	< 0.001
predV	2	predH	1	< 0.001	0.006
predV	2	predVC	− 2	< 0.001	< 0.001
predH	1	predVC	− 2	< 0.001	< 0.001

W Wilcoxon signed-rank test