Place Field Remapping during the Maze Morphing Experiment
(A) Schematics of square and cruciform mazes configured by our system (top) and the representative running trajectory of a rat (bottom). The runways enclosed by red circles were not moved during the morphing experiment.
(B) Representative change of the place field of a place cell recorded from a rat (ζA) during maze morphing. The maximum firing rate is displayed at the top left corner.
(C and D) Violin plots of spatial similarity as the spatial correlation of the firing rate map (C) (z = −3.98, p = 10−4) and rate similarity as firing rate difference within place fields (D) (z = −0.60, p = 0.55) between the square maze and cruciform maze, and between the first and second exposures of the square maze (left). The bar indicates the median. Surrounding each side is a rotated kernel density plot. Their cumulative frequency is graphed to the right.
All were from two-tailed Wilcoxon signed-rank test. ***p < 0.001, n.s.: p > 0.05.