神经形态工程学
感觉系统
适应(眼睛)
感觉适应
信号(编程语言)
生物神经网络
神经科学
信息传递
神经生理学
过程(计算)
突触后电位
实现(概率)
人工神经网络
人工智能
材料科学
计算机科学
生物
电信
受体
统计
操作系统
数学
生物化学
程序设计语言
作者
Tae‐Ju Lee,Kwang‐Ro Yun,Su‐Kyung Kim,Jong‐Ho Kim,Junyoung Jin,Kee‐Baek Sim,Da‐Hoon Lee,Gyu Weon Hwang,Tae‐Yeon Seong
标识
DOI:10.1002/adma.202105485
摘要
Human behavior (e.g., the response to any incoming information) has very complex forms and is based on the response to consecutive external stimuli entering varied sensory receptors. Sensory adaptation is an elementary form of the sensory nervous system known to filter out irrelevant information for efficient information transfer from consecutive stimuli. As bioinspired neuromorphic electronic system is developed, the functionality of organs shall be emulated at a higher level than the cell. Because it is important for electronic devices to possess sensory adaptation in spiking neural networks, the authors demonstrate a dynamic, real-time, photoadaptation process to optical irradiation when repeated light stimuli are presented to the artificial photoreceptor. The filtered electrical signal generated by the light and the adapting signal produces a specific range of postsynaptic states through the neurotransistor, demonstrating changes in the response according to the environment, as normally perceived by the human brain. This successfully demonstrates plausible biological sensory adaptation. Further, the ability of this circuit design to accommodate changes in the intensity of bright or dark light by adjusting the sensitivity of the artificial photoreceptor is demonstrated. Thus, the proposed artificial photoreceptor circuits have the potential to advance neuromorphic device technology by providing sensory adaptation capabilities.
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