Emulation of Astrocyte Induced Neural Phase Synchrony in Spin-Orbit Torque Oscillator Neurons

Frontiers in Neuroscience

Umang Garg¹  Kezhou Yang²  Abhronil Sengupta² 

[1] Department of Electronics and Instrumentation Engineering, Birla Institute of Technology and Science, Pilani, India;School of Electrical Engineering and Computer Science, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, United States;

关键词: neuromorphic computing;    magnetic tunnel junction;    astrocytes;    Spintronics;    spiking neural networks;   

DOI  :  10.3389/fnins.2021.699632

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown