a) Activity of a CA1 place cell on interleaved SMT and random
foraging sessions. Data are plotted as in Fig.
4. Sessions immediately followed one another. Sessions 1 and 3
were 30 min long each, while sessions 2 and 4 were 15 min long each. b)
Activity on an MEC grid cell, plotted as in (a). Sessions 1 and 3 were 1 h
long each, while sessions 2 and 4 were 20 min long each. Session 2 and 4
immediately followed sessions 1 and 3, respectively. The starts of sessions
1 and 3 were separated by 24 h. c) Summary of the stability across all 882
SMT-modulated CA1 cells. For each cell, the Pearson correlation is measured
between the PSTHs from the first halves of the SMT sessions and the second
halves of the sessions. Orange: distribution of correlation values across
cells. Gray: distribution of correlation values computed after shuffling
spike times, averaged across 100 shuffles. d) Summary of the data from 597
MEC cells, plotted as in (c). In CA1 and MEC, 95.7% and
97.2% of the cells has higher correlation values than in the
shuffled data (p<0.01), respectively.