Remapping and the active subset across hippocampal subregions.
In each subregion, a greater proportion of place cells were active in the box than the cylinder. Note that the proportion of DG cells that were active in both environments was higher than the proportions in the CA3 and CA1 areas (test of proportions z≥2.52, p<0.01). Only cells with an overall firing rate>0.1 AP/s in at least one environment were analyzed. The number of cells is given in parentheses.