Fig. 1.

Central core of local feedback loop pulse generator in a saccadic system. (A) Block diagram showing gating of premotor burst neurons (MLBN) by OPN. (B) Simplified implementation of model in A in SIMULINK. Simple burst neuron is a block that models a single-compartment, spiking neuron. The output of this block is clipped (saturation) and low-pass filtered (motor gain) to produce an eye velocity command. The displacement integrator converts this command into an efference copy of current eye displacement during the saccade, which is subtracted from the desired eye displacement (ΔEd) to compute motor error.