Table 1. Probability of an Accurate Go Response [p(Correct)], Probability of a Missed Go Response [p(Miss)], Average Reaction Time (RT) for Correct Go Responses, Probability of Responding on a Signal Trial [p(Respond)], Average Stop-Signal Delay (SSD), Stop-Signal Reaction Time (SSRT), and Signal-Respond Reaction Time (S-R RT; the Latency of Incorrectly Executed Responses on stop-signal trials) as a Function of Stop-Signal Condition and Distractor Condition.

	Central signal				No signal				Noncentral signal
	No distractor		Distractor		No distractor		Distractor		No distractor		Distractor
	M	SD	M	SD	M	SD	M	SD	M	SD	M	SD
Note. P(Correct) is the ratio of the number of correct responses to the number of correct and incorrect responses: p(Correct) = Correct/(Correct + Incorrect). P(Miss) is the ratio of the number of omitted responses to the total number of no-stop-signal trials: p(Miss) = Missed/(Correct + Incorrect + Missed). M = mean; SD = standard deviation.
p(correct)	0.95	0.05	0.95	0.05	0.96	0.03	0.96	0.02	0.95	0.05	0.96	0.04
p(miss)	0.06	0.05	0.07	0.08	0.02	0.02	0.02	0.03	0.07	0.06	0.08	0.06
RT	946	170	1004	171	719	97	789	97	945	161	1028	156
p(respond)	0.47	0.05	0.46	0.05					0.48	0.06	0.56	0.15
SSD	584	204	590	193					555	229	441	280
SSRT	333	92	370	82					363	130	616	260
s-r RT	844	180	902	163					867	151	965	161