Mixed Signal Learning by Spike Correlation Propagation in Feedback Inhibitory Circuits
Fig 6
Correlation propagation shapes lateral connection structure.
(A) Comparison between feature selectivity ϕY (blue dots) calculated from simulation results and analytically calculated correlation kernel function g1Y (green line) for lateral excitatory connections. Thin green horizontal line represents g1Y = 0. (B) Comparison between the degree of mutual inhibition ϕY (blue dots) calculated from the simulation and analytically calculated correlation kernel g1Z (green line) for lateral inhibitory connections. Negative g1Z is correlated with a high degree of mutual inhibition, as expected (see Methods). (C) Ratio of output neurons tuned for the minor source in a minor source detection task under Hebbian and anti-Hebbian inhibitory spike-timing-dependent plasticity.