Fig. 2.
Diagram of the full leaky and noisy integrate-and-fire model used to predict afferent activity. The model comprises eight inputs, corresponding to the positive and negative components of position, velocity, acceleration, and jerk, each of which is passed through a linear prefilter. The summed output of the prefilters constitutes the input to the IF mechanism. When the membrane potential of the IF mechanism reaches threshold, a spike is produced and an inhibitory current is released to mimic refractoriness.