Fentanyl reinforcement history has sex-specific effects on multi-step decision-making
Eric Garr, Yifeng Cheng, Andy Dong, Patricia H. Janak
This study shows chronic fentanyl reinforcement promotes habit formation in rats, with sex-specific effects on decision-making and perseveration during reward seeking.
Neuropharmacology · Jan 29, 2026Peer-reviewedAnimal Behavior & Cognition