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. Author manuscript; available in PMC: 2012 Sep 24.
Published in final edited form as: Psychopharmacology (Berl). 2008 Aug 23;201(3):373–382. doi: 10.1007/s00213-008-1293-6

Fig. 2.

Fig. 2

Selected behaviors observed every 15 s during a 2-min observation period. This occurred 30 min after the administration of vehicle (V) or naltrexone. Each data point represents the average (±SEM) number of times that a sign was observed (maximum possible score=8). One-factor repeated-measures ANOVA was followed by Dunnett's test to determine which points were significantly (*p<0.05) different from control (points above V). Ordinate: frequency of signs. See Fig. 1 for other details