Fig. 7: Stability measures across compartments show apical dendrites are more stable across days.

a Experimental timeline schematic. An environment was designated as Familiar after mice ran on that treadmill belt for 3-5 days. ROIs were tracked over following two days, Familiar Day 1 (yellow) and Familiar Day 2 (orange). b Example apical, somatic, and basal ROIs demonstrating different short- and long-term stability. Each column represents a different ROI. Raw activity and rate map for the first half of Familiar Day 1 (top row), second half of Familiar Day 1 (middle row), Familiar Day 2 (bottom row). Tuning curve correlation was compared between First and Second Half of Familiar Day 1 Session (Within Day) and Familiar Day 1 and 2 (Across Day). c Rate maps for all apical, soma, and basal ROIs in a single FOV on Familiar Day 1 (left) and Day 2 (right). ROIs are sorted according to the position of the peak of their tuning curve in Familiar Day 1, and that order is maintained for Familiar Day 2. d Distributions of across-day tuning curve correlations for data in (C) showing apical dendrites had higher correlation than soma or basal dendrites. e Population vector overlap matrices for data in (C), titles stating mean value across the diagonal. f Left, within-day tuning curve correlations were not different across compartment type. Right, in contrast, higher across-day TC correlations in apical dendrites compared to soma and basal dendrites (Apical vs Basal, p = 0.031). g Population vector correlations, apical dendrites significantly more stable than basal dendrites within-day (Left, Apical vs Basal, p = 0.023) and across-day (Right, Apical vs Basal, p = 0.031). Bar graphs indicate median and its 95% confidence interval values. n = 8 sessions for all comparisons in (f) and (g). See Supplementary Table 10 for summary statistics.