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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Alcohol Clin Exp Res. 2015 Feb 19;39(3):485–495. doi: 10.1111/acer.12630

Figure 2.

Figure 2

Appetitive behavior in adolescents and adults during operant self-administration of sweetened ethanol (left, 10S10E: A, C) or sucrose only solutions (right, 10S: B, D) using an appetitive/consummatory model. The latency to first lever press (A) and time to complete the response requirement of four presses (RR4; C) were significantly longer in adolescents compared with adults during operant self-administration of sweetened ethanol (** p<0.01). During sucrose only self-administration, adolescents and adults did not differ in latency to the first lever press or time to complete the response requirement (B, D). The gap between sessions 5 and 6 denote a weekend with no operant sessions taking place. 10S10E = 10% sucrose +10% ethanol, 10S = 10% sucrose. Points represent mean ± SEM.