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. 2012 May;341(2):424–434. doi: 10.1124/jpet.111.186981

Fig. 7.

Fig. 7.

Effects of cocaine (1.0 mg/kg) on extracellular levels of DA in the caudate nucleus (A; n = 4) or nucleus accumbens (B; n = 3) after pretreatment with 0.3 mg/kg Ro 60-0175 (●) or its vehicle (○) in squirrel monkeys. Data points (mean ± S.E.M.) are expressed as the percentage of DA levels before drug administration. Arrows designate time of administration of Ro 60-0175 or its vehicle (ptx, pretreatment) and cocaine (coc). *, significant difference (p < 0.05) for a given data point compared with vehicle pretreatment within the same time point. Abscissae, time relative to cocaine administration. Ordinates, normalized DA concentration.