Fig. 6.
Schematic illustrating the modeling of synaptic integration by small cells. Each cell was modeled as a leaky integrator neuron that received excitation in response to the rising stimulus edge (ipsilateral) and either inhibition only or inhibition plus excitation in response to the falling stimulus edge (contralateral). Inhibitory latencies were set at 0 ms, and excitatory latencies (Δtipsi and Δtcontra) were varied from 0 to 10 ms. Synaptic conductances were simulated as alpha functions (see materials and methods for details). These conductances were passed through a sigmoidal filter that modeled the effects of peripheral long-pass filtering by KOs, thereby reducing synaptic input strength at short durations.