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Figure 9: The differential reinforcement of low-rate response 10 s response-based indexes after eticlopride pretreatment (n = 8): 0.02 mg/kg eticlopride (a-d) and 0.06 mg/kg eticlopride (e-h). Low dose eticlopride had a partial reversal effect on the SKF83959-induced declines in response rates on the differential reinforcement of low-rate response 10 s schedule. High dose eticlopride did not have such an effect. * P < 0.05; *** P < 0.001 relative to vehicle (Experiment 2). |
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