Figure 4.

(A) The influence of sodium valproate (100–200 mg/kg, i.p.) on performance of the initial and reversal phase of the reversal learning task. Data are shown as the mean total number of lever presses, correct responses are shown as clear bars and incorrect responses are shown as shaded bars (n = 10 per group). (B) The influence of sodium valproate (100–200 mg/kg, i.p.) on performance of the initial and reversal phase in a reversal learning task. Data are shown as mean ± S.E.M. percentage correct responding (n = 10 per group).