Effects of DCS infusion into the BLA on conditioned freezing. a, When infused before brief memory reactivation (LTM; 1 CS re-exposure), DCS increased subsequent freezing in tests PR-LTM and PR-LTM2, although it had no effect on PR-STM. b, When administered before longer extinction training (extinction; 10 CS re-exposures), DCS enhanced the partial reduction of freezing observed in saline controls (n = 7–9 per group). Error bars indicate SE.