Table 2.

Raw counts of nuclei for Experiment 2

Area	Group 8arm-2	Group 8arm-novel
VISp	215.5  ± 13.9	220.7  ± 18.8
MOp	169.0  ± 14.0	165.7  ± 17.5
SSp	180.0  ± 14.0	178.6  ± 13.8
Peri	136.0  ± 15.9	155.8  ± 16.5
Post	117.0  ± 13.1	172.1  ± 12.5
Entl	59.4  ± 6.5	80.2  ± 9.8
Entmv	108.3  ± 10.6	160.2  ± 19.8
Subd	46.9  ± 6.8	87.3  ± 18.4
Subv	57.3  ± 6.6	71.1  ± 10.7
Subc	52.2  ± 7.4	78.6  ± 9.6
DG	10.5  ± 4.0	17.1  ± 2.7
CA3	12.7  ± 2.5	17.0  ± 3.2
CA1	9.6  ± 1.6	21.9  ± 3.3
Dorsal HPC	39.6  ± 5.6	91.3  ± 13.2
Ventral HPC	108.7  ± 10.4	149.6  ± 21.4

The mean counts ± SE of the number of Fos-stained nuclei for the given regions in Experiment 2. For areas VISp down to Subc, these numbers are taken from the standard frame sample area, which is equivalent to 0.43 mm² (see Materials and Methods). For the remaining areas the counts are for the entire extent of the target region within the selected coronal sections. The mean counts for Experiment 2 are approximately twice those in Experiment 1. This general increase in staining is attributable to the use of a different batch of primary antibody. See Figure 1 for abbreviations.