Table 3.

Significant rsFCs.

Seed ROI	Cluster anatomical location	Cluster voxel size	Primary peak location in Talairach space (x, y, z)	Peak z-score
Correlation between negative urgency and rsFC strength in overall group
Left Insula	Right dACC	77	−3, +27, +18	4.53
Group differences between tobacco users and non-tobacco users
Right Amygdala	Right Middle Temporal Gyrus	84	+57, −33, +0	4.12
Differences in correlations between negative urgency and rsFC strength between groups
Left NAcc	Right dACC	262	+11, +19, +30	−4.57
Left NAcc	Right dlPFC	165	+31, +25 +38	−4.64

Note. Voxel level threshold p = .001; cluster level threshold α < .05. Voxel size = 2.0 mm³