Table 2. Statistical details for the sEEG results.

Contact localization	Subject no.	Df	T	Corrected P	Cohen’s d
Mental imagery condition at 4 Hz
L posterior insula	1	19	5.57	<0.001	1.24
L anterior supramarginal gyrus	1	19	3.40	0.034	0.76
	1	19	2.99	0.084	0.67
	5	18	3.29	0.046	0.75
L Heschl’s gyrus	2	15	5.00	0.002	1.25
	2	15	4.64	0.004	1.16
	4	19	4.57	0.002	1.02
R middle superior temporal gyrus	3	19	4.08	0.007	0.91
	3	19	5.29	<0.001	1.18
Baseline condition at 4 Hz
L middle superior temporal gyrus	1	19	4.47	0.003	1.00
L posterior insula	1	19	8.06	<0.001	1.80
L anterior supramarginal gyrus	1	19	3.35	0.037	0.75
	5	18	3.43	0.034	0.79
L Heschl’s gyrus	2	19	4.41	0.003	0.99
	2	19	4.58	0.002	1.02
	2	19	4.60	0.002	1.03
	2	19	3.44	0.031	0.77
R middle superior temporal gyrus	3	19	5.29	<0.001	1.18
	3	19	4.35	0.004	0.97
	3	19	3.81	0.013	0.85
	3	19	3.97	0.009	0.89
	3	19	3.79	0.014	0.85
R middle middle temporal gyrus	5	18	4.52	0.003	1.34