Bio-plausible reconfigurable spiking neuron for neuromorphic computing

作者：Yu Xiao, Y. F. Liu, Bihua Zhang, Peng Chen, Huaze Zhu, Enhui He, Jiayi Zhao, Wenju Huo, Xiaofei Jin, Xumeng Zhang, Hao Jiang, De Ma, Qian Zheng, Huajin Tang, Peng Lin, Wei Kong, Gang Pan · 发表于：Science Advances · 年份：2025 · DOI：10.1126/sciadv.adr6733 · 被引用次数：45 · 研究领域：Advanced Memory and Neural Computing、Neural dynamics and brain function、Photoreceptor and optogenetics research

Biological neurons use diverse temporal expressions of spikes to achieve efficient communication and modulation of neural activities. Nonetheless, existing neuromorphic computing systems mainly use simplified neuron models with limited spiking behaviors due to high cost of emulating these biological spike patterns. Here, we propose a compact reconfigurable neuron design using the intrinsic dynamics of a NbO 2 -based spiking unit and excellent tunability in an electrochemical memory (ECRAM) to emulate the fast-slow dynamics in a bio-plausible neuron. The resistance of the ECRAM was effective in tuning the temporal dynamics of the membrane potential, contributing to flexible reconfiguration of various bio-plausible firing modes, such as phasic and burst spiking, and exhibiting adaptive spiking behaviors in changing environment. We used the bio-plausible neuron model to build spiking neural networks with bursting neurons and demonstrated improved classification accuracies over simplified models, showing great promises for use in more bio-plausible neuromorphic computing systems.