TABLE 1

Sessions required to reach the criteria in the different phases of the acquisition of phencyclidine (PCP, 2.8 mg/kg) and MTEP (2.0 mg/kg) discrimination

Compound	Total (FR1–FR10)		FR10		FR1–FR7
Compound	Mean	Range	Mean	Range	Mean	Range
PCP	43.38	29–59	32.50	17–49	10.88	10–14
MTEP	55.63	37–71	44.75	27–61	10.88	10–12