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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Psychopharmacology (Berl). 2013 Aug 15;231(1):10.1007/s00213-013-3223-5. doi: 10.1007/s00213-013-3223-5

Fig. 1.

Fig. 1

Effects of (±)-methcathinone, (±)-MDPV, (±)-methylone and (±)-mephedrone on full ICSS frequency-rate curves. Abscissae: frequency of electrical brain stimulation in log Hz. Ordinates: percent maximum control reinforcement rate (%MCR). Drug doses are indicated in legends in units of mg/kg. Filled points represent frequencies at which reinforcement rates were statistically different from vehicle rates as determined by two-way ANOVA followed by Holm-Sidak post hoc test, p<0.05. All data show mean ± SEM for five rats (methylone) or six rats (all other drugs).