Extended Data Fig. 7: A Hebbian/anti-Hebbian network model of the PPC with both excitatory and inhibitory neurons exhibits similar representational drift as the network in Fig. 6 of main text.

(a) Population activity of excitatory neurons for the left-turn and right-turn task before (upper) and after (lower) sorting based on the centroids of their RFs. Only neurons that have active RFs at the given time point are shown. (b) Population activity drifts but representational similarity is stable over time. Activity of excitatory neurons that are active (either tuned to left turn or right turn) in the sorted time (upper and middle). Representational similarity matrix is stable for both left-turn and right-turn task (lower panels). (c,d) Comparison of drift statistics between model and experiment, corresponding to panels d–f of Fig. 6 in the main text. Error bars: mean ± SD, n = 5, 5, 4 mice for ∆ = 1, 10, 20 days.