Garg Umang, Yang Kezhou, Sengupta Abhronil
School of Electrical Engineering and Computer Science, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, United States.
Department of Electronics and Instrumentation Engineering, Birla Institute of Technology and Science, Pilani, India.
Front Neurosci. 2021 Oct 12;15:699632. doi: 10.3389/fnins.2021.699632. eCollection 2021.
Astrocytes play a central role in inducing concerted phase synchronized neural-wave patterns inside the brain. In this article, we demonstrate that injected radio-frequency signal in underlying heavy metal layer of spin-orbit torque oscillator neurons mimic the neuron phase synchronization effect realized by glial cells. Potential application of such phase coupling effects is illustrated in the context of a temporal "binding problem." We also present the design of a coupled neuron-synapse-astrocyte network enabled by compact neuromimetic devices by combining the concepts of local spike-timing dependent plasticity and astrocyte induced neural phase synchrony.
星形胶质细胞在诱导大脑内部协调的相位同步神经波模式中发挥着核心作用。在本文中，我们证明了在自旋轨道扭矩振荡器神经元的底层重金属层中注入射频信号，可模拟由神经胶质细胞实现的神经元相位同步效应。这种相位耦合效应的潜在应用在时间“捆绑问题”的背景下得到了说明。我们还通过结合局部脉冲时间依赖可塑性和星形胶质细胞诱导的神经相位同步的概念，展示了一种由紧凑型神经拟态器件实现的耦合神经元-突触-星形胶质细胞网络的设计。
