Nullcline-Based Design of a Silicon Neuron

  title={Nullcline-Based Design of a Silicon Neuron},
  author={Arindam Basu and Paul E. Hasler},
  journal={IEEE Transactions on Circuits and Systems I: Regular Papers},
In this paper, we describe the design of a silicon neuron that exhibits type-I neural excitability, i.e., the frequency of spiking of the neuron approaches arbitrarily close to zero as the input current is reduced. Our design creates a conductance-based silicon model that can exhibit a saddle-node bifurcation. We present simulations and measured data from circuits fabricated in 0.35-μm CMOS that demonstrate both saddle-node bifurcation on invariant circle and saddle-homoclinic bifurcation. In… CONTINUE READING
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