a) Experimental design
b) PCA behavior during the training sessions expressed as a mean difference score (the number of port entries during the CS+ minus the number of port entries during the CS−) ± SEM (vehicle, n=15; AMPH – imm, n=12; AMPH – 3 hrs, n=7).
c) PCA behavior during Training Session 2 expressed as a mean difference score ± SEM (vehicle, n=15; AMPH – imm, n=12; AMPH – 3 hrs, n=7). The data from the session is separated into 3 bins that each consist of 5 individual trials. *P<.05