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A. 0.5mg/kg d-amphetamine. B. 0.7mg/kg d-amphetamine. C. 1.0mg/kg d-amphetamine. Note 0.5 and 0.7mg/kg d-amphetamine was tested in all strain and sex groups and 1mg/kg was tested only in LER males to confirm previously published work. * p < 0.05. Individual data plus mean and SEM. LER females (closed circle), LER male (closed triangle), WR female (open circle), WR male (open triangle).
