A subcohort of LRHF task rats was treated for four weeks while resting with a selective NK1RA (L732,138, Tocris Bioscience, R&D, Minneapolis, MN) at 5 mg/kg body weight in 50 µl of 95% ethanol in saline (dose determined from[20 ,21 (link)]). This dose was injected, i.p., 3x/week during the four week rest period. Subcohorts of FRC rats were either left untreated, or were treated for four weeks with the NK1RA drug or its vehicle (50 µl of 95% ethanol, i.p.) at matched time points as treated LRHF rats.