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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Behav Pharmacol. 2016 Apr;27(2-):155–164. doi: 10.1097/FBP.0000000000000194

Table 1.

Order of treatment conditions and number of sessions under each treatment

Treatment condition Monkey
AN BR GE
1 0.1a (21)b 0.1 (25) 0.1 (21)
2 0.32 (21) 0.32 (27) 0.32 (21)
3 1.0 (21) 1.0 (33) 1.0 (21)
4 3.2 (25) 3.2 (24) 3.2 (25)
5 5.6 (25) 1.0x2 (31) 5.6 (26)
6 3.2x2c (42) 3.2x2 (43) 3.2x2 (42)
a

Daily treatment dose of morphine (mg/kg)

b

Days of administration of each dose are shown in parentheses

c

”x2” indicates twice daily treatment