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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Alcohol Clin Exp Res. 2013 Aug 16;38(1):186–194. doi: 10.1111/acer.12255

Figure 2. First trial discrimination scores during acquisition.

Figure 2

Data shown are collapsed across training dose and time point. (A) For POS-trained subjects, post-hoc analyses on data collapsed across age revealed that discrimination scores were higher during ethanol sessions than saline sessions on days 5–10 (indicated by *s). Collapsed across day, adults (n=46) had higher first trial discrimination scores than adolescents (n=45) during ethanol sessions (inset; indicated by +) whereas adolescents had higher saline session discrimination scores than adults (inset; indicated by #). (B) For NOS-trained subjects, discrimination scores were higher on saline sessions than ethanol sessions on days 5, and 7–10, collapsed across age; however, on day 1, discrimination scores were higher on the ethanol session than the saline session. Collapsed across day, adolescents (n=35) had higher discrimination scores than adults (n=38) during ethanol sessions (indicated by #, see inset) whereas no age differences were evident during saline sessions.