Synaptic plasticity in self-powered artificial striate cortex for binocular orientation selectivity

This paper reports a bioinspired striate cortex with binocular and orientation-selective receptive fields, based on a crossbar array of self-powered memristors. The memristors exhibit plasticity modulated by optical stimuli following triplet-STDP rules. A 3x3 flexible crossbar array demonstrated successful plasticity modulation using a generalized BCM learning rule for optical-encoded pattern recognition. An artificial striate cortex with binocularity and orientation selectivity was implemented using two simulated 9x9 self-powered memristor networks. This emulation facilitates edge and corner detection for machine vision.

Yanyun Ren, Xiaobo Bu, Ming Wang, Yue Gong, Junjie Wang, Yuyang Yang, Guijun Li, Meng Zhang, Ye Zhou, Su-Ting Han