p068fig02.13 Hartline's lab developed a model to describe signal processing by the retina of the horseshoe crab.<BR>||  Neurophysiology (network): lateral inhibition in limulus retina of horseshoe crab (Hartline, Ratliff, Miller 1963, Nobel Prize)<BR>hi = ei - sum[j=1 to n: {∫[dv, 0 to t: e^(-A*(t-v))*hj(v)] - Γj}(+) *Bji<BR>ei = spiking frequency without inhibition<BR>hi = spiking frequency with inhibition<BR>[w - r]+ vs i, Precursor of ADDITIVE network model.