“…Gelhorn, Sakai, Price, and Crowley () examined AA in the context of CD and antisocial personality disorder (APD) in a large ( N = 41,571) nationally representative sample of adults, finding that for men self‐reports of AA were associated with both CD and APD. The recently included LPE specifier (DSM‐5, 2013) may prove to be valuable in studies of AA (Kahn, Frick, Youngstrom, Findling, & Youngstrom, ; Klahr & Burt, ; Longman, Hawes, & Kohlhoff, ; Scheepers, Buitelaar, & Matthys, ; Walters, , ), especially since deficits in empathy and CU traits may be implicated in some cases of AA (McDonald, Collins, et al, ; Plant, van Schaik, Gullone, & Flynn, ). We note that the developing field of behavioral epigenetics lends support to the associations among CD, CU traits, DNA methylation (Cecil et al, ; Dadds et al, ), and levels of serotonin (Moul, Dobson‐Stone, Brennan, Hawes, & Dadds, ).…”