Fig. 5: Spiking elementary motion detector model adapted from84.
From: Finding the gap: neuromorphic motion-vision in dense environments
a sEMD model consisting of visual input and TDE unit. Two adjacent retina inputs are connected to the facilitatory synapse (fac) and the trigger synapse (trig), respectively. The facilitatory synapse controls the gain of the trigger synapse’s postsynaptic current (epsc), which integrates into the LIF neuron’s membrane potential, which produces output spikes (out). b Model behaviour for small positive Δt. c Behaviour for large positive Δt. d Behaviour for negative Δt. e Number of output spikes over Δt.
