Figure 6.
Effects of the M1 agonist 77-LH-28-1 as pretreatment to cocaine in Swiss-Webster mice. Leftmost panels show 77-LH-28-1 doses tested with 10 mg/kg cocaine, right panels show rightward shifts in the cocaine dose-effect function after administration of 3.2 mg/kg 77-LH-28-1. Abscissae, left panels: dose 77-LH-28-1 in mg/kg, “V” indicates vehicle; right panels: dose cocaine in mg/kg, “Sal” indicates saline. Ordinates: percentage cocaine-appropriate responses (top); response rate in responses per second (bottom). Data are groups means ± one S.E.M., N=8 (left), N=6 (right).