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. 2012 Jun 20;7(6):e39639. doi: 10.1371/journal.pone.0039639

Figure 1. Effects of acute post-retrieval PROP on social play-induced CPP.

Figure 1

The experimental protocol is depicted above the graph (Pre-C: pre-conditioning test, CS+: conditioning session with a play-partner, CS-: conditioning session alone). Data represent the mean time (sec ± SEM) spent in the social compartment (grey bars) and the non-social compartment (white bars) during 15 min retrieval- (RETR), test- (TEST) and reinstatement- (REIN) sessions. Saline-treated animals (2 ml/kg, i.p., n = 18), PROP-treated animals (10 mg/kg, i.p., n = 8). Post-hoc Student's paired t-tests for difference in time spent in the social- and non-social compartment *p<0.05, **p<0.01, ***p<0.001.