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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Drug Alcohol Depend. 2015 Apr 2;151:220–227. doi: 10.1016/j.drugalcdep.2015.03.021

Table 2.

Performance in the stop signal task

SSRT
(ms)		 Median
go RT
(ms)		 %go %stop PES
(effect size)		 PSS
(effect size)
CD
(n = 51)		 221 ± 48 568 ± 86 96.3 ± 1.6 51.5 ± 3.1 1.86 ± 1.54 2.17 ± 1.81
HC
(n = 57)		 209 ± 40 593 ± 96 97.1 ± 1.9 51.9 ± 2.4 2.28 ± 1.76 2.69 ± 1.76
p-value * 0.18 0.16 0.02 0.44 0.19 0.14

Note: All values are mean ± standard deviation; CD: individuals with cocaine dependence; HC: healthy controls; SSRT: stop signal reaction time; RT: reaction time; %go: percentage of go response trials; %stop: percentage of stop success trials; PES: post-error slowing; PSS: post-stop slowing.

*

p-value based on 2-tailed 2-sample t test.