(A) Experimental design. Mice that were dark housed for 3 days following the TAM injection had the least number of EYFP+ DG cells.
(B) Experimental design to assess the impact of context exposure and one-shock CFC on behavior and cell labeling. Mice exposed to the context without a foot shock did not freeze, whereas mice administered a one-shock CFC paradigm froze approximately 20% of the time.
(C–J) The numbers of EYFP+, Arc+, and c-fos+ cells were assessed in both conditions. The number of EYFP+ cells increased with context exposure and with one-shock CFC from the number of EYFP+ cells labeled in the home cage. n = 4–7 mice per group. Error bars represent ± SEM.
See also Figure S2.