Alison M Roussell

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Previous studies have suggested that the effects of contingent (response dependent) and noncontingent (response independent) cocaine administration may differ, which could limit the generality and validity of laboratory studies that use only noncontingent administration. Therefore, two separate three-component multiple schedules of operant responding were(More)
Six rhesus monkeys responding under a three-component multiple schedule were administered haloperidol to determine its effects on cocaine self-administration and on cocaine's disruptive effects on the repeated acquisition and performance of response chains. In the absence of haloperidol, 0.0032-0.032 mg/kg/infusion of cocaine increased response rate and the(More)
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