Table 2

Late positive potential amplitudes and task-related liking and wanting ratings for cocaine for each condition in healthy controls at baseline and in individuals with cocaine use disorders at baseline and 6-month follow-up

	Group, time point; mean ± SD

Measure	Control, baseline	CUD, baseline	CUD, follow-up
Pleasant LPP, μV^*^†	1.12 ± 1.79	−0.28 ± 2.00	0.19 ± 1.54
Drug LPP, μV^*^†	−0.41 ± 1.03	0.27 ± 1.90	−0.12 ± 1.44
Neutral LPP, μV	−1.63 ± 1.80	−0.51 ± 1.75	−0.89 ± 1.44
Drug – pleasant LPP, μV^*^†^‡	−1.54 ± 1.50	0.56 ± 1.29	−0.31 ± 1.61
Pleasant ratings
Liking^*^†	1.45 ± 0.96	2.92 ± 1.71	2.82 ± 1.76
Wanting	2.55 ± 3.40	2.28 ± 1.47	2.77 ± 1.69
Drug ratings
Liking^*^†	1.33 ± 0.96	3.38 ± 1.75	3.55 ± 2.32
Wanting	2.56 ± 3.33	3.56 ± 1.69	3.59 ± 2.38
Neutral ratings
Liking	1.60 ± 1.11	2.34 ± 1.73	2.45 ± 1.59
Wanting	1.67 ± 2.08	1.98 ± 1.41	2.39 ± 1.57
Drug – pleasant ratings
Liking^†	−0.17 ± 0.33	0.45 ± 1.91	0.73 ± 1.37
Wanting^*^†	−0.06 ± 0.16	1.27 ± 1.55	0.82 ± 1.48

CUD = cocaine use disorder; LPP = late positive potential; SD = standard deviation.
↵* Significant difference between controls and CUD at baseline (p < 0.05).
↵† Significant difference between controls at baseline and CUD at follow-up (p < 0.05).
↵‡ Significant difference in CUD between baseline and follow-up (p < 0.05).