Figure 8.

Distinct contributions of spiking activity and synaptic inputs to inter-areal coherence in E/I network models

(A) Each area consisted of a population of spiking neurons (stochastic Wilson-Cowan equations). Columns 1 and 2: neurons in area 2 were “blind” to the synaptic inputs from area 1, i.e., spiking entrainment was prohibited. Columns 3 and 4: inputs from area 1 could entrain the area-2 neurons.

(B–D) Power and coherence spectra for different sender-receiver oscillation frequencies.

(E) Coherence versus the ratio of inter- to intra-regional connections.

(F) Phase locking of receiver neurons to area-1 and area-2 oscillations versus connectivity weight.

(G) Percentage of coherence explained by spiking entrainment versus the frequency difference between sender and receiver oscillations.

See also Figures S2 and S5–S8.