The medial prefrontal cortex (mPFC) and nucleus accumbens (NAc) have been associated with the expression of adaptive and maladaptive behavior elicited by fear-related and drug-associated cues. However, reported effects of mPFC manipulations on cue-elicited natural reward-seeking and inhibition thereof have been varied, with few studies examining cortico-striatal contributions in tasks that require adaptive responding to cues signalling reward and punishment within the same session. The current study aimed to better elucidate the role of mPFC and NAc subdivisions, and their functional connectivity in cue-elicited adaptive responding using a novel discriminative cue responding task. Male Long Evans rats learned to lever-press on a VR5 schedule for a discriminative cue signalling reward, and to avoid pressing the same lever in the presence of another cue signalling punishment. Post-acquisition, prelimbic (PL) and infralimbic (IL) areas of the mPFC, NAc core, shell, PL-core or IL-shell circuits were pharmacolo...