Figure2Large.gif (4968 bytes)

 
Figure 2
Effect of eticlopride (0.3, 1, 3, 10
ug/kg/inj).  Data are presented as mean total self-injection during 3 h sessions.  *p<0.05 versus same dose of SKF82958 alone, **p<0.01 versus same dose of SKF82958 alone.