Analog Neurons with Dopamine-Modulated STDP

Abstract

Neuron circuits embedded with dopamine-modulated spike-timing-dependent plasticity (STDP) are described in this paper. The circuit functions are discussed in detail with HSPICE simulations. This work explores a possible learning process including short-term STDP and longer-term dopamine reward in neuromorphic systems including a noisy synapse that initiates and influences learning.