TABLE 3.

Pearson coefficients for correlations (with p value reported) between RT and accuracy and frontal midline theta (FMT) 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), and polydrug users (PU).

	All participants		CG		CU		PU
	RT	Accuracy	RT	Accuracy	RT	Accuracy	RT	Accuracy
FMT
Load 1	0.07 p = 0.5768	0.0167 p = 0.8943	0.264 p = 0.2483	0.393 p = 0.078	−0.21 p = 0.3246	−0.064 p = 0.7657	0.409 p = 0.06579	0.009 p = 0.9695
Load 2	0.06 p = 0.6312	0.009 p = 0.9417	0.104 p = 0.6524	0.048 p = 0.835	−0.106 p = 0.6224	−0.36 p = 0.0843	0.361 p = 0.1076	0.235 p = 0.3048
Load 3	−0.0159 p = 0.8993	−0.074 p = 0.54	0.081 p = 0.7264	0.249 p = 0.2755	−0.247 p = 0.2438	−0.188 p = 0.38	0.501 p = 0.0207	−0.135 p = 0.5604
Load 4	0.054 p = 0.6661	0.009 p = 0.9397	0.186 p = 0.4202	0.217 p = 0.3451	−0.261 p = 0.2179	0.127 p = 0.5555	0.588 p = 0.0051	−0.387 p = 0.0827
Averaged for all loads	0.059 p = 0.6377	−0.031 p = 0.8074	0.189 p = 4121	0.25 p = 0.2747	−2.225 p = 0.2907	−0.163 p = 0.4463	0.487 p = 0.0252	−0.061 p = 0.7943

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