Fixed ratio schedules of food presentation and stimulus shock termination: Effects of d-amphetamine, morphine, and clozapine
1978 ◽
Vol 8
(1)
◽
pp. 35-39
◽
1977 ◽
Vol 7
(6)
◽
pp. 529-535
◽
1984 ◽
Vol 20
(5)
◽
pp. 715-720
◽
2008 ◽
Vol 89
(1)
◽
pp. 31-48
◽
1990 ◽
Vol 1
(6)
◽
pp. 531???540
◽
Keyword(s):
Keyword(s):