Disconnecting the medial PFC and NAc does not affect probabilistic discounting. A, Left, Choice for the Large/Risky lever following medial PFC–NAc disconnections and control treatments. Right, Acceptable location of infusions through the rostral–caudal extent of the medial PFC and NAc. B, C, Disconnection of this pathway increased choice latencies (B) and trial omissions (C). Sal, Saline; Ipsi, ipsilateral; Disc, disconnection. *p < 0.05 versus saline.