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Comparison of opioid agonists in maintaining responding and in suppressing morphine withdrawal in rhesus monkeys

โœ Scribed by Alice M. Young; Henry H. Swain; James H. Woods


Publisher
Springer
Year
1981
Tongue
English
Weight
836 KB
Volume
74
Category
Article
ISSN
0033-3158

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Behavior maintained under second-order s
โœ Steven R. Goldberg; Andrew H. Tang ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Springer ๐ŸŒ English โš– 829 KB

Under second-order schedules of morphine injection, high rates of responding by squirrel and rhesus monkeys were maintained when morphine was injected intravenously only at the end of each session. Every 30th key-pressing response during a 60-min interval produced a 2-s light; the first 30-response