TABLE 4.

Pearson coefficients for correlations (with p value reported) between RT and accuracy and alpha posterior asymmetry (P4/3, P6/5, PO4/3, and PO8/7) during maintenance, at all WM loads and averaged across all memory loads for all participants and each group separately: control group (CG), cannabis users (CU), polydrug users (PU).

	All participants		CG		CU		PU
	RT	Accuracy	RT	Accuracy	RT	Accuracy	RT	Accuracy
Alpha asymmetry
Load 1	−0.189 p = 0.1279	0.142 p = 0.2562	0.233 p = 0.3084	−0.048 p = 0.8353	−0.43 p = 0.0347	0.135 p = 0.5299	−0.212 p = 0.3561	0.305 p = 0.1786
Load 2	−0.231 p = 0.0626	0.0005 p = 0.997	0.101 p = 0.6625	−0.031 p = 0.8954	−0.44 p = 0.0318	−0.038 p = 0.8602	−0.196 p = 0.3958	0.021 p = 0.9268
Load 3	−0.279 p = 0.0236	0.048 p = 0.7031	−0.183 p = 0.4274	−0.032 p = 0.8906	−0.55 p = 0.005	0.171 p = 0.4232	−0.032 p = 0.8895	−0.08 p = 0.7303
Load 4	−0.197 p = 0.1128	0.116 p = 0.3543	−0.15 p = 0.515	−0.046 p = 0.8414	0.39 p = 0.058	0.226 p = 0.2881	0.055 p = 0.8132	0.076 p = 0.7439
Averaged for all loads	−0.268 p = 0.0297	0.094 p = 0.4547	0.026 p = 9105	−0.071 p = 0.7613	−0.524 p = 0.0085	0.231 p = 0.2764	−0.168 p = 0.4677	−0.021 p = 0.9278

Coefficients are indicated in bold for p < 0.05; highlighted coefficient almost reaches p = 0.05.