Cephalopods can swiftly merge into the surroundings by changing their skin color even without the involvement of brains. Inspired by this ability, we designed a tunable, environment- adaptive camouflagic artificial reflex arc that can independently activate electrochromism in response to optical stimuli. The receptor of this arc consists in a light-stimulated synaptic transistor (LSST) that also performs synaptic functions, e.g., excitatory post-synaptic current (EPSC) generation, paired-pulse facilitation (PPF), high-pass filtering, and modulation. Amplified EPSC causes color transform of an electrochromic device (ECD) upon external optical stimuli. We emulate the phenomenon that an octopus changes color according to the background light with or without intentional modulation to demonstrate the camouflage effect of our device.

中文翻译：

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人工反射弧：一种环境自适应神经形态伪装装置

即使没有大脑的参与，头足类动物也可以通过改变肤色迅速融入周围环境。受这种能力的启发，我们设计了一种可调的、环境自适应的伪装人工反射弧，可以独立地激活电致变色以响应光刺激。该弧的受体包含一个光刺激突触晶体管 (LSST)，该晶体管也执行突触功能，例如兴奋性突触后电流 (EPSC) 生成、成对脉冲促进 (PPF)、高通滤波和调制。放大的 EPSC 在外部光刺激下引起电致变色装置 (ECD) 的颜色变换。我们模拟了章鱼根据背景光改变颜色的现象，无论是否有意调制，以展示我们设备的伪装效果。