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. 2021 Aug 2;238(11):3119–3130. doi: 10.1007/s00213-021-05929-1

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — Alcohol intake for the selected groups of low and high playing rats that were allowed to drink either alcohol or water during adolescence. A The alcohol intake during adolescence is shown (LP N = 9, HP N = 14). B The levels of alcohol intake (g/kg) in adulthood, in 7-h (weeks 1–4) and 24-h (weeks 5–8) sessions, by water (N = 22) or alcohol (N = 23) pre-exposure. C The levels of alcohol intake (g/kg) for the same rats, grouped by low (LP, N = 16) or high (HP, N = 29) tendency to engage in social play behaviour. Shown are the average + SEM levels of weekly alcohol intake per group. Post hoc pairwise comparisons: ** or *** significant difference between adolescent water and adolescent alcohol (p < 0.01 or p < 0.001, respectively); # significant difference between low and high playing rats (p < 0.05)