McGue, 2008); a fifth, which proposes that the core liability is one of behavioral undercontrol, delineates a personality structure virtually identical to that in Iacono et al.'s (2008) behavioral disinhibition construct but focuses more on personality structure and genetic basis without elaboration of neurophysiological structure (Slutske et al, 2002); and a sixth, which is closest to our work here, posits a hierarchic structural model involving a behavioral disinhibition higher-order factor superordinate to three lower factors of impulsive sensation-seeking, antisociality/unconventionality, and externalizing symptomatology (see Bogg & Finn, 2010; Wills et al., 2001).
