Figure 2.

(A) Schematic description of the multi-threshold neuron. The neuron integrates all inputs it receives simultaneously in two accumulators, one for STDP triggering and WTA, and the second one for inference (i.e., spike propagation). (B) Interaction between two neurons coupled via lateral inhibition. If the integration in the WTA accumulator reaches the threshold value, no actual spike is propagated. However, the neuron will behave as if it had spiked, which includes a reset of its integration value, a triggering of STDP and WTA lateral inhibition which affect only the WTA accumulators of the other neuron (by reseting them). (C) If integration reaches the threshold value in the inference accumulator, a spike will be propagated and integration will be reset. The inference accumulators of other neurons are not necessarily affected.