Correlational analyses of the relationships between potency to produce MDPV-appropriate responding and to inhibit uptake at monoamine transporters for MDPV (black circles), α-PVP (grey squares), α-PPP (open circles), MDPPP (downward triangles), MDPBP (upward triangles), and cocaine (grey circles). Abscissa: mean ±SEM potency (mg/kg) to produce MDPV-appropriate responding. Ordinate: Upper panel: Potency (μM) to inhibit [3H]dopamine uptake at DAT. Center panel: Potency (μM) to inhibit [3H]norepinephrine uptake at NET. Lower panel: Potency (μM) to inhibit [3H]serotonin uptake at SERT.