the acute effects of diazepam ( valium ) were assessed using a battery of complex food-reinforced operant tasks that included responding in delayed matching to sample ( dmts , n = 5 ) , conditioned position response ( cpr , n = 7 ) progressive ratio ( pr , n = 8 ) , temporal response differentiation ( trd , n = 4 ) , and incremental repeated acquisition ( ira , n = 9 ) tests .
C0012010
diazepam
C0699187
valium