Fig. 5: Retinomorphic pathway using neuromorphic elements.

a Diagram illustrating the biological retinal pathway (top). Response of the logic gate devices to increasing light intensity and wavelength (bottom). b Equivalent circuit of the biological retinal pathway described in panel (a) built using W = 50 µm BBL/PEDOT devices. c Spiking output of the retinomorphic circuitry in response to the double stimuli represented by a dynamically increasing light intensity and the target wavelength (580 nm).