Table 2.

The results of the canonical correlations between impulsivity measures (BIS and task-related impulsivity) and theta (θ) band (4.0–7.0 Hz) and its subbands – low theta, θ1 (4.0–5.5 Hz) and high theta, θ2 (5.5–7.0 Hz) power during each condition are shown. The p-values were derived from Wilks’ Lambda statistic. Significance level indicates the strength of correlation between theta power in a scalp region and impulsivity measures/scores as a whole.

Measure	Condition	Frontal	Central	Parietal	Occipital	Left Temporal	Right Temporal
θ band (4.0–7.0 Hz)	−50	0.0375*	0.11	0.13	0.18	0.0180*	0.21
	−10	0.0298*	0.22	0.0388*	0.21	0.26	0.95
	+50	0.0496*	0.15	0.12	0.14	0.55	0.11
	+10	0.53	0.38	0.26	0.11	0.57	0.20
θ1 band (4.0–5.5 Hz)	−50	0.27	0.33	0.41	0.12	0.0465*	0.65
	−10	0.22	0.75	0.19	0.08	0.38	0.94
	+50	0.26	0.55	0.83	0.44	0.68	0.28
	+10	0.89	0.62	0.38	0.06	0.40	0.81
θ2 band (5.5–7.0 Hz)	−50	0.0393*	0.0404*	0.13	0.05	0.05	0.14
	−10	0.0155*	0.0088**	0.06	0.52	0.18	0.62
	+50	0.13	0.0224*	0.0057**	0.64	0.52	0.81
	+10	0.26	0.49	0.14	0.36	0.14	0.10

^*p < 0.05

^**p < 0.01

^***p < 0.001