TY - JOUR
T1 - Morphine
T2 - Conditioned increases in self-administration in rhesus monkeys
AU - Goldberg, Stephen R.
AU - Woods, James H.
AU - Schuster, Charles R.
PY - 1969
Y1 - 1969
N2 - Operant responding in three monkeys was maintained by intravenous presentations of morphine. Nalorphine produced reliable increases in morphine-reinforced responding. With successive daily nalorphine injections there was a decreased latency of self-administration responding for morphine, and substituted saline injections produced conditioned increases in morphine-reinforced responding.
AB - Operant responding in three monkeys was maintained by intravenous presentations of morphine. Nalorphine produced reliable increases in morphine-reinforced responding. With successive daily nalorphine injections there was a decreased latency of self-administration responding for morphine, and substituted saline injections produced conditioned increases in morphine-reinforced responding.
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U2 - 10.1126/science.166.3910.1306
DO - 10.1126/science.166.3910.1306
M3 - Article
C2 - 4981723
AN - SCOPUS:0014665329
SN - 0036-8075
VL - 166
SP - 1306
EP - 1307
JO - Science
JF - Science
IS - 3910
ER -