Table 1.

A comparison of place cells from CA1 and CA3 subregions in young adult rats by Leutgeb et al. ( 2004 ) and our current experiment

	Leutgeb et al. (2004)	Current study
Overall firing rate	CA1 > CA3**	CA1 > CA3*
Maximum firing rate	CA1 > CA3*b	CA1 > CA3†
Field size	CA1 > CA3**	CA1 > CA3***a
Sharpness	CA3 > CA1**	CA3 > CA1*b

For means ± SEM from the current experiment, see Figure 5. Statistical analyses for the current experiment used an ANOVA with repeated measures. ^*p < 0.05; ^**p < 0.01; ^***p < 0.001; ^†trend p = 0.13. The sharpness of place fields was measured by sparsity in Leutgeb et al. (2004), whereas the current experiment measured sharpness by the information content (see Materials and Methods).

^a Familiar environment only.

^b Novel environment only.