... Although the studies reviewed differ in the samples, genetic variants, and paradigms examined, they are united by the common goal of identifying the biological intermediates that translate genetic risk into behavior. [Pezawas et al., 2005;Smolka et al., 2007;Williams et al., 2009;Thomason et al., 2010;Drabant et al., 2012;Hermann et al., 2012;Klucken et al., 2013Klucken et al., , 2014Murphy et al., 2013;Klumpers et al., 2014;Lueken et al., 2015] 15 Murphy et al., 2013] 19 13 [Garpenstrand et al., 2001;Brocke et al., 2006;Armbruster et al., 2009;Crisan et al., 2009;Lonsdorf et al., 2009Williams et al., 2009;Agren et al., 2012;Hermann et al., 2012;Klumpers et al., 2012Klumpers et al., , 2014Glotzbach-Schoon et al., 2013;Wendt et al., 2014] 6 Larson et al., 2010;Pauli et al., 2010;Hartley et al., 2012;Heitland et al., 2013;Klucken et al., 2014] STPP [Smolka et al., , 2007Drabant et al., 2006;Domschke et al., 2008;Kempton et al., 2008;Williams et al., 2010; 0 8 7 [Montag et al., 2008;Lonsdorf et al., 2009Agren et al., 2012;Klauke et al., 2012;Norrholm et al., 2013;Wendt et al., 2014] 1 [Pauli et al., 2010] DAT1 (SLC6A3) Lau et al., 2010;Soliman et al., 2010;Lonsdorf et al., 2014] 0 8 6 Hajcak et al., 2009;Lonsdorf et al., 2010;Soliman et al., 2010;M€ uhlberger et al., 2014] 2 [Torrents-Rodas et al., 2012;Lonsdorf et al., 2014] CNR1 (CB1, CNR) Initially believed to be located in DRD2, the Taq1A restriction fragment length polymorphism has since been located in ANKK1. ...