“…Research suggests that subjective urge, heart rate, and mean arterial pressure (MAP) are the most commonly used indices of cue reactivity (Niaura et al, 1988) but they can be independent of each other in alcoholic individuals . Reactivity to alcohol cues has been shown to predict treatment outcome (Cooney et al, 1997;Rohsenow and Monti, 1999) and is a useful paradigm for testing mechanisms of medications' effects on urge (Hersh et al, 1995;McCaul and Monti, 2003;Monti et al, 1999;Robbins et al, 1992;Rohsenow et al, 2000). Finally, urge for drugs of abuse has been proposed as a useful endophenotype for the study of pharmacogenetic mechanisms (Hutchison et al, 2003).…”