Table 4.

Mean standard deviation of tap-asynchrony.

Exposure type	Lag (ms)	Pre-test		Post-test		Post – Pre
		Mean SD (ms)	diff	Mean SD (ms)	diff	Mean SD (ms)	Diff
Mixed-exposure	50	42.9 (1.6)		50.8 (2.7)		7.9 (1.8)
	150	44.2 (1.8)		50.0 (3.1)		5.8 (2.0)
	150 & 50	43.5	1.3	50.4	-0.8	6.9**	-2.1
Pure-exposure	50	53.2 (3.1)		57.9 (3.1)		4.7 (2.0)
	150	52.0 (3.7)		55.4 (3.8)		3.5 (2.1)
	150 & 50	52.6	-1.2	56.7	-2.5	4.1*	-1.2

Standard errors of mean are shown in parenthesis.

*p < 0.01, **p < 0.001.