“…However, since such behaviors also have significance for many clinically relevant behavioral patterns, such as depression, drug dependence, and externalizing behaviors (see, e.g., Bouton, 2002;Doughty, Reed, & Lattal, 2004;Reed & Clark, 2011;Williams et al, 2006), it has been thought important to develop experimental analogues of the effect in order to study the factors that impact resurgence more fully, and such experimental analogues are helpful in the present context of investigating the impact of manipulations such as mindfulness that are specifically designed to limit intrusions from previous learning into current performance (see Hayes et al, 1999;Kabat-Zinn, 2003). Reed and Morgan (2007) investigated whether resurgence of behavior during extinction depended on previously established rates of response (see also Doughty et al, 2004;Doughty, da Silva, & Lattal, 2007). In this within-subjects study, rats were trained on a multiple schedule comprising two different schedules of reinforcement that are known to produce two particular and different rates of responding: a variable ratio (VR) schedule, where reinforcement is related to the number of responses made and which produces higher rates of response, and a VI schedule, where only responses following the passage of time are reinforced and which is known to produce lower rates of response (see Dack, McHugh, & Reed, 2010, for a similar demonstration in humans).…”