Table 2.

General performance in the stop signal task

group	Median go RT (ms)	%go	%stop	SSRT (ms)	FP effect^ (effect size)	PES (effect size)	RT difference between pG speeding and slowing (ms)^
PAD	687 ± 114	96.2 ± 1.63	53.3 ± 3.6	190 ± 30	1.78 ± 1.68	1.56 ± 2.06	−171 ± 33
HC	595 ± 150	96.5 ± 1.81	50.9 ± 2.6	195 ± 36	2.27 ± 1.65	1.42 ± 1.52	−181 ± 49
P value	0.020*	0.850	0.010*	0.645	0.310	0.791	0.386

Note: PAD: patients with alcohol dependence; HC: healthy controls; %go and %stop: percentage of successful go and stop trials; SSRT: stop-signal reaction time; FP (fore-period) effect: 42 ± 42 ms (AD) vs. 54 ± 34 ms (HC); PES (post-error slowing): 38 ± 51 ms (AD) vs. 36 ± 37 ms (HC); all numbers are mean ± standard deviation. P value based on 2-talied two sample t test.

^*<0.05

^{^}pG: post-go; =extent of post-go speeding – extent of post-go slowing. See text for further explanation.