“…Because older adults have been routinely excluded from MRI studies that do not focus on aging, and taking into account shared neurodegenerative impacts of addiction and biological aging (Cheng et al, 2013), there is relatively little known about FDCR in older adults (e.g., > 65-years). In terms of sex/gender, multiple studies have demonstrated sex-/gender-related differences in FDCR, particularly in participants who smoke cigarettes (Francis J. McClernon, Kozink, & Rose, 2008;Wetherill et al, 2013), individuals with cocaine dependence (Joseph et al, 2019;Potenza et al, 2012), and those with gambling (Kober et al, 2016) and gaming Dong, Wang, Wang, Du, & Potenza, 2019;Dong, Zheng, et al, 2018) disorders, which may depend, in part, on menstrual cycle phase in women (T. R. Franklin, Jagannathan, Ketcherside, Spilka, & Wetherill, 2019).…”