Post-training glucocorticoid receptor activation during Pavlovian conditioning reduces Pavlovian-instrumental transfer in rats

► Pavlovian stimuli can enhance instrumental action (Pavlovian-Instrumental Transfer). ► Dexamethasone effects on Pavlovian-Instrumental Transfer were examined in rats. ► Dexamethasone reduced Pavlovian-Instrumental Transfer. ► Dexamethasone-induced body weight loss seem not to account for this effect.