Table 1.

Percent T2|T1 correct and standard errors as a function of stimulation polarity (anodal/cathodal), stimulation condition (sham/active) and T1-T2 interval (lag 1, lag 3, lag 5).

Polarity	Stimulation condition	T1-T2 interval	Percent T2|T1 correct	SE
Anodal tDCS	Sham	Lag 1	93.41	3.37
		Lag 3	69.54	2.48
		Lag 5	66.77	3.01
	Active	Lag 1	93.38	2.37
		Lag 3	74.79	2.33
		Lag 5	69.90	3.00
Cathodal tDCS	Sham	Lag 1	90.42	2.20
		Lag 3	66.52	2.78
		Lag 5	63.16	3.01
	Active	Lag 1	90.66*	2.70*
		Lag 3	64.47	2.47
		Lag 5	54.10	2.68

^*After having removed the outlier value at Lag 1 of the active condition from one participant in the cathodal group (more than 3 SD below the group mean) and replaced it by the group mean, the percent of T2|T1 correct at lag 1 on the Cathodal tDCS condition is 89.12 with a SE of 2.31.

Standard errors were computed according to Morey (2008)⁸⁴ procedure for estimating the confidence intervals in within-subject designs.