Extended Data Fig. 4: Rotational ensemble activity within the excitatory and inhibitory sub-populations in the BSG-model.
From: Movement is governed by rotational neural dynamics in spinal motor networks
a, Activation of the motor circuit by descending drive. b, The firing rates of 10 sample excitatory neurons oscillate because of the descending input. (c) Sorting the excitatory neurons according to phase of firing rates reveals a sequential activity like the previously observed for all neurons. d-e, Activity and similar sorting of the inhibitory sub-populations reveals similar sequential and rotational dynamics within that sub-population. f, The network eigenmode for the whole network: Each dot represent both the phase (the polar angle) and the peak firing rate (the radius) for a given neuron (n = 200). g-h, Similar plot for the excitatory and inhibitory populations. i-k, the distribution of phases in linear histograms for all neurons (i), excitatory (j) and inhibitory neurons (k). To be compared with experimental distributions (Extended Data Figs. 1 and 2).
