“…Further analyses of structural imaging data from a similar cohort (Durazzo et al, 2017, Durazzo et al, 2015) revealed that ALC had significant increases in gray matter (GM) volumes in the frontal, parietal and occipital lobes between 1 week and 7.5 months of abstinence; the monthly GM volume change rates in the entire frontal and parietal lobes were significantly greater between 1 week and 1 month of abstinence than between 1 month and 7.5 months of abstinence, suggesting a non-linear trajectory of GM volume recovery in these lobes. Clinically relevant modulators of the degree of regional volume reduction in adult ALC and of the extent of volume recovery during abstinence have been identified, such as age, gender, genetic factors, family history of problem drinking, concurrent chronic cigarette smoking, and comorbid medical, psychiatric, and substance use disorders (Cardenas et al, 2005, Demirakca et al, 2011, Durazzo et al, 2007a, Durazzo et al, 2007b, Durazzo and Meyerhoff, 2017, Gazdzinski et al, 2005b, Hoefer et al, 2014, Mon et al, 2013, Pennington et al, 2015). However, it is unclear if the volume reductions and longitudinal change trajectories also exist in functionally distinct sub-regions within the lobar GM regions that are critically important to addictive behavior.…”