Table 2.

Behavioral Task Results

	Overall (N = 55)*				iAUD (n = 26)		HCV (n =29)

CPT	mean	sd	min	max	mean	sd	mean	sd	F (1,47)	p_ancova
RT, Overall	0.42	0.06	0.31	0.57	0.42	0.07	0.42	0.06	0.36	0.55
RT, Commision Errors	0.35	0.08	0.14	0.58	0.35	0.08	0.36	0.07	2.48	0.12
RT, Correct	0.41	0.06	0.31	0.57	0.42	0.07	0.41	0.06	0.36	0.55
Accuracy	87.97%	8.04%	68.33%	100.00%	88.81%	7.61%	87.21%	8.47%	1.49	0.23
Commision Error Rate	9.42%	5.63%	0.00%	20.30%	8.75%	5.59%	10.03%	5.69%	0.69	0.41
Ommision Error Rate	2.61%	4.46%	0.00%	17.50%	2.44%	4.23%	2.76%	4.72%	1.35	0.25

*Stroop*	Overall (N = 60)				iAUD (n = 30)		HCV (n = 30)		F (1,51)	p_ancova

Interference Score, Neutral Environment	52.1	6.69	38	71	51.97	7.53	52.23	7.37	0.50	0.48
Interference Score, Alcohol Cued Environment	55.22	7.39	40	77	55.73	6.99	54.69	6.45	1.55	0.22
Interference Score, Alcohol - Neutral Enviornment	2.2	8.92	−46	19	3.77	6.93	0.63	10.44	0.64	0.43
Number of Errors, Alcohol - Neutral Environment	0.22	0.92	−2	3	0.2	0.96	0.23	0.9	0.21	0.65

Notes: Descriptive statistics (means, variances, and ranges) for behavioral tasks of sustained attention (CPT) and cognitive inference (Stroop), reported across the sample and broken down by group. Groups compared using a two-tailed Welch two-sample t-test. One HCV subject did not complete the Stroop within the alcohol cued environment. *statistics, descriptives, and number of subjects included reflect the removal of 5 outliers who had <60% accuracy on the CPT or average response time >700 ms. Abbreviations as follows: RT- response time; CPT- continuous performance task; AUD- individuals with alcohol use disorder group; HCV- healthy control volunteer group; sd- standard deviation; F()- test statistic (degrees of freedom); pancova - p-value for the group differences test