To examine networks involved in the maintenance of abstinence from alcohol, spherical seeds with 3.5 mm radii were placed at left and right nucleus accumbens (NAcc) based on the Talaraich Daemon atlas from AFNI (Lancaster et al., 2000) (MNI coordinates: x = ± 12, y = 10, z = − 1). As described in (Camchong et al., 2013b), we originally examined left and right NAcc separately, but because results were highly similar (r = 0.81, p = 7.47 × 10− 12), they were combined. For each participant, a multiple regression analysis (FSL-FEAT, see (Smith et al., 2004)) on the denoised data was performed. This analysis generated a map of statistical parameter estimates for each voxel, for each individual. All voxels in the maps showed the degree of positive or negative correlations with the average time-series (over the left and right NAcc seeds) for each participant. Correlation values at each voxel were transformed to z-scores. In our previous work (Camchong et al., 2013b), dorsolateral prefrontal cortex (DLPFC) regions of the executive control network showed greater RSS with NAcc; thalamic nuclei (anterior
