“…During testing for resurgence in Phase 3, reinforcement typically is withheld for both responses, resulting in a transient recovery of target responding. Resurgence was first observed in rats (Leitenberg et al, 1970) and has since been demonstrated across several species, including fish (e.g., da Silva et al, 2014; Kuroda et al, 2017a, b), mice (Craig et al, 2020), rats (Craig & Shahan, 2016; Winterbauer & Bouton, 2010, 2011), pigeons (e.g., Liddon et al, 2017; Shvarts et al, 2020), monkeys (Mulick et al, 1976), and humans (Podlesnik et al, 2020; see Kestner & Peterson, 2017, for a review).…”