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. 2022 May 16;25(6):104412. doi: 10.1016/j.isci.2022.104412

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© 2022 The Author(s)

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Neural activity of each condition, with main effects of group identity and age

Brain activity associated with group identity.

(A–B) and age (C–D) assessed by 2-way ANOVAs.

(A) Brain diagram of all regions associated with group identity. All regions shown were more active for the ingroup than outgroup.

(B) Scatterplots of five regions previously found to be uniquely active for adult ingroup compared to outgroup rats. Each region shows a main effect of group identity and adolescents display similar patterns as adults.

(C) Brain diagram of all regions associated with age. Colored regions on the diagram represent areas more active for adults (green) or for adolescents (yellow).

(D) Scatterplots of five of the seven brain regions that uniquely had a main effect of age but not group identity (not shown: AIV and CA3). All scatterplots can be found in Figure S1. Table S1 includes a detailed table for all regions. 2-way ANOVA results: + main effect of group identity, # main effect of age, § significant interaction between age and group identity. Error bars represent S.E.M.