The other side of the approach/restraint conflict is addressed by Dick et al. (in press) who note that impulsivity (arguably, in most but not all cases, the lack of restraint) is, like drinking motivations, multidimensional and so the specific types of phenotypes relevant for consilient translation between human and animal species will depend upon the specific facet of restraint/impulsivity considered (e.g., ability to inhibit a prepotent response, negative affect urgency). (We note that one aspect of impulsivity, novelty seeking is probably best thought of as approach; Dick et al. [in press, this issue] specifically discuss which types of phenotypes are potentially ripe for translation between human and nonhuman animals.)
