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Psychopharmacology|November 1, 1996
Initiation, maintenance and extinction of cocaine self-administration with and without conditioned rewardR Ranaldi, D C RobertsPharmacology, Biochemistry, and Behavior|January 1, 1993
MDL 72222, ketanserin, and methysergide pretreatments fail to alter breaking points on a progressive ratio schedule reinforced by intravenous cocaineS Lacosta, D C RobertsPsychopharmacology|August 1, 1995
Oral self-administration of sweetened nicotine solutions by ratsA Smith, D C RobertsBrain Research|October 8, 1993
Dopaminergic antagonism within the nucleus accumbens or the amygdala produces differential effects on intravenous cocaine self-administration under fixed and progressive ratio schedules of reinforcementA McGregor, D C RobertsThe Medical Journal of Australia|March 2, 1987
The effect of zinc supplements on plasma zinc and copper levels and the reported symptoms in healthy volunteersS Samman, D C RobertsJournal of Nutritional Science and Vitaminology|October 1, 1990
Dietary protein and cholesterol metabolism--interaction of mineralsD C Roberts, S SammanBehavioural Brain Research|February 1, 1995
Effect of medial prefrontal cortex injections of SCH 23390 on intravenous cocaine self-administration under both a fixed and progressive ratio schedule of reinforcementA McGregor, D C RobertsPsychopharmacology|January 1, 1987
The effect of haloperidol on cocaine self-administration is augmented with repeated administrationsD C Roberts, G VickersToxicon : Official Journal of the International Society on Toxinology|January 1, 1985
Characterization of the messenger RNA population coding for components of viperid snake venomM L Vandenplas, S Vandenplas, K Brebner, et al.Psychopharmacology|January 1, 1993
Heroin self-administration in rats under a progressive ratio schedule of reinforcementD C Roberts, S A BennettPageof 15