Table 1.

Mean and standard deviation of the performance accuracy (A′) in each subject group during different digit loads and memory delays

	IMT			DMT
	Three digits	Five digits	Seven digits	Three digits	Five digits	Seven digits
Cocaine	0.941 ± 0.088	0.883 ± 0.092	0.843 ± 0.114	0.945 ± 0.056	0.853 ± 0.143	0.782 ± 0.137
Control	0.967 ± 0.047	0.904 ± 0.078	0.762 ± 0.121	0.941 ± 0.051	0.887 ± 0.059	0.771 ± 0.169