Impulsive actions and choices in laboratory animals and humans: effects of high vs. low dopamine states produced by systemic treatments given to neurologically intact subjects.

Two studies reported a null effect for methylphenidate (0.3–4.0 mg/kg, i.p.) on premature responding, although a nonsignificant trend of a dose-dependent increase was found (Fernando et al., 2012 ; Paterson et al., 2012 ).

also in 5,406 other papers