Cargando…
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...
Autores principales: | , , , , , , |
---|---|
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 |
_version_ | 1783297164789678080 |
---|---|
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. |
format | Online Article Text |
id | pubmed-5794787 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT shizheng spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT zhangshuai spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT yuanjialei spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT zhubingcheng spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT jiangyuan spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT shenxiangfei spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse AT wangyongjin spatiotemporalsummationandcorrelationmimickedinafouremitterlightinducedartificialsynapse |