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Lever responding, alcohol reinforcers and alcohol Intake during oral selfadministration of alcohol using operant conditioning procedures. Males and females did not significantly differ in responding on the active lever (a), and there was no sex-related difference in the number of alcohol reinforcers (b). Average alcohol intake was significantly higher in females compared to males (c). Values are mean ± s.e.m. (N= 8–10/group). Significantly differs compared to males: ** (p< 0.01)
