Behavioral Mechanisms of Oxycodone's Effects in Female and Male Rats: Reinforcement Delay and Impulsive Choice

μ-Opioid agonists (e.g., morphine) typically increase impulsive choice, which has been interpreted as an opioid-induced increase in sensitivity to reinforcement delay. Relatively little research has been done with opioids other than morphine (e.g., oxycodone), or on sex differences in opioid effects...

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