“…Although choosing a smaller-sooner sum over a larger-later sum is often described as being an 'impulsive' choice, there is equivocal empirical evidence for (e.g., de Wit, Flory, Acheson, McCloskey, & Manuck, 2007;Kirby, Petry, & Bickel, 1999) and against (e.g., McLeish & Oxoby, 2007;Mitchell, 1999;Reynolds, Ortengren, Richards, & de Wit, 2006) an association between discounting and trait-level impulsivity. This has led to discussion that they have behavioral correlates that can be seen as reflecting impulsive decision making.…”