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Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse

In the brain, each postsynaptic neuron interconnects many presynaptic neurons and performs functions that are related to summation and recognition as well as correlation. Based on a convolution operation and nonlinear distortion function, we propose a mathematical model to explore the elementary syn...

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Autores principales: Shi, Zheng, Zhang, Shuai, Yuan, Jialei, Zhu, Bingcheng, Jiang, Yuan, Shen, Xiangfei, Wang, Yongjin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794787/
https://www.ncbi.nlm.nih.gov/pubmed/29391494
http://dx.doi.org/10.1038/s41598-018-20595-8
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author Shi, Zheng
Zhang, Shuai
Yuan, Jialei
Zhu, Bingcheng
Jiang, Yuan
Shen, Xiangfei
Wang, Yongjin
author_facet Shi, Zheng
Zhang, Shuai
Yuan, Jialei
Zhu, Bingcheng
Jiang, Yuan
Shen, Xiangfei
Wang, Yongjin
author_sort Shi, Zheng
collection PubMed
description In the brain, each postsynaptic neuron interconnects many presynaptic neurons and performs functions that are related to summation and recognition as well as correlation. Based on a convolution operation and nonlinear distortion function, we propose a mathematical model to explore the elementary synaptic mechanism. A four-emitter light-induced artificial synapse is implemented on an III-nitride-on-silicon platform to validate the device concept for emulating the synaptic behaviors of a biological synapse with multiple presynaptic inputs. In addition to a progressive increase in the amplitude of successive spatiotemporal excitatory postsynaptic voltages, the differences in the stimulations are remembered for signal recognition. When repetitive stimulations are simultaneously applied and last over a long period of time, resonant spatiotemporal correlation occurs because an association is formed between the presynaptic stimulations. Four resonant spatiotemporal correlations of each triple-stimulation combination are experimentally demonstrated and agree well with the simulation results. The repetitive stimulation combinations with prime number-based periods inherently exhibit the maximum capacity of resonant spatiotemporal correlation. Our work offers a new approach to building artificial synapse networks.
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spelling pubmed-57947872018-02-12 Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse Shi, Zheng Zhang, Shuai Yuan, Jialei Zhu, Bingcheng Jiang, Yuan Shen, Xiangfei Wang, Yongjin Sci Rep Article In the brain, each postsynaptic neuron interconnects many presynaptic neurons and performs functions that are related to summation and recognition as well as correlation. Based on a convolution operation and nonlinear distortion function, we propose a mathematical model to explore the elementary synaptic mechanism. A four-emitter light-induced artificial synapse is implemented on an III-nitride-on-silicon platform to validate the device concept for emulating the synaptic behaviors of a biological synapse with multiple presynaptic inputs. In addition to a progressive increase in the amplitude of successive spatiotemporal excitatory postsynaptic voltages, the differences in the stimulations are remembered for signal recognition. When repetitive stimulations are simultaneously applied and last over a long period of time, resonant spatiotemporal correlation occurs because an association is formed between the presynaptic stimulations. Four resonant spatiotemporal correlations of each triple-stimulation combination are experimentally demonstrated and agree well with the simulation results. The repetitive stimulation combinations with prime number-based periods inherently exhibit the maximum capacity of resonant spatiotemporal correlation. Our work offers a new approach to building artificial synapse networks. Nature Publishing Group UK 2018-02-01 /pmc/articles/PMC5794787/ /pubmed/29391494 http://dx.doi.org/10.1038/s41598-018-20595-8 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Shi, Zheng
Zhang, Shuai
Yuan, Jialei
Zhu, Bingcheng
Jiang, Yuan
Shen, Xiangfei
Wang, Yongjin
Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title_full Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title_fullStr Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title_full_unstemmed Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title_short Spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
title_sort spatiotemporal summation and correlation mimicked in a four-emitter light-induced artificial synapse
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794787/
https://www.ncbi.nlm.nih.gov/pubmed/29391494
http://dx.doi.org/10.1038/s41598-018-20595-8
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