Table 4.

Effect of cannabidiol (CBD) on brain activity during reward anticipation and feedback in our regions of interest (ROIs), showing t-statistics, p-values and Bayes factors. Degrees of freedom=23 for each test. Alpha value was reduced to 0.006 to account for multiple tests. A Bayes factor of >3 is taken in support of the null.

Region	t	p	Bayes factor
Reward anticipate
L medial frontal gyrus	1.04	0.309	3.75
R insula	0.232	0.819	6.09
R NAcc	–0.639	0.530	5.14
L NAcc	1.34	0.194	2.71
R thalamus	0.203	0.841	6.13
L thalamus I	0.543	0.592	5.43
L thalamus II	0.404	0.690	5.78
L culmen	–0.972	0.342	3.99
Reward feedback
R subcallosal gyrus	–0.475	0.640	5.61
L parahippocampal gyrus	0.842	0.409	4.46
R parahippocampal gyrus	–0.543	0.593	5.43
R caudate	0.116	0.909	6.21
R NAcc	–0.223	0.826	6.10
L NAcc	–0.952	0.351	4.07
L amygdala	–0.158	0.876	6.18

L: left; NAcc: nucleus accumbens; R: right.