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. 2014 Apr 29;8:138. doi: 10.3389/fnbeh.2014.00138

Figure 4.

Figure 4

Context-evoked neural activation patterns in the OB are specific to the associated odor. (A) Mice were trained to associate a context to an odorant, the decanal (Dec), 30 min per day during 10 days. The day of the test, the same odorant as during training (Dec-Dec), or an empty swab (Dec-NO) was introduced in the cage. Mice were sacrificed (S) 1 h after the test. (B) Mice trained during 10 days with Dec and tested with no odor (Dec-NO) showed an investigation time of the odor port superior to the mice trained and tested with the odorant (Dec-Dec). (C) The density of Zif268-positive cells was similar between both groups. (D) The overlap between maps of Dec-Dec and Dec-NO was high (66%) indicating the similarity between those two maps. Overlaps significantly decreased when other comparisons were performed. (E) Normalized 2-D maps of the density of Zif268-positive cells in the granule cell layer of the OB of Dec-Dec and Dec-NO groups showed similar patterns of Zif268 expression. (*p < 0.05).