Neuromorphic atomic switch networks.

Efforts to emulate the formidable information processing capabilities of the brain through neuromorphic engineering have been bolstered by recent progress in the fabrication of nonlinear, nanoscale circuit elements that exhibit synapse-like operational characteristics. However, conventional fabricat...

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Autores principales:	Audrius V Avizienis, Henry O Sillin, Cristina Martin-Olmos, Hsien Hang Shieh, Masakazu Aono, Adam Z Stieg, James K Gimzewski
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/16a32aa2675f4695a7c2f4d8add09573
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id	oai:doaj.org-article:16a32aa2675f4695a7c2f4d8add09573
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spelling	oai:doaj.org-article:16a32aa2675f4695a7c2f4d8add095732021-11-18T07:09:32ZNeuromorphic atomic switch networks.1932-620310.1371/journal.pone.0042772https://doaj.org/article/16a32aa2675f4695a7c2f4d8add095732012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22880101/?tool=EBIhttps://doaj.org/toc/1932-6203Efforts to emulate the formidable information processing capabilities of the brain through neuromorphic engineering have been bolstered by recent progress in the fabrication of nonlinear, nanoscale circuit elements that exhibit synapse-like operational characteristics. However, conventional fabrication techniques are unable to efficiently generate structures with the highly complex interconnectivity found in biological neuronal networks. Here we demonstrate the physical realization of a self-assembled neuromorphic device which implements basic concepts of systems neuroscience through a hardware-based platform comprised of over a billion interconnected atomic-switch inorganic synapses embedded in a complex network of silver nanowires. Observations of network activation and passive harmonic generation demonstrate a collective response to input stimulus in agreement with recent theoretical predictions. Further, emergent behaviors unique to the complex network of atomic switches and akin to brain function are observed, namely spatially distributed memory, recurrent dynamics and the activation of feedforward subnetworks. These devices display the functional characteristics required for implementing unconventional, biologically and neurally inspired computational methodologies in a synthetic experimental system.Audrius V AvizienisHenry O SillinCristina Martin-OlmosHsien Hang ShiehMasakazu AonoAdam Z StiegJames K GimzewskiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e42772 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Audrius V Avizienis Henry O Sillin Cristina Martin-Olmos Hsien Hang Shieh Masakazu Aono Adam Z Stieg James K Gimzewski Neuromorphic atomic switch networks.
description	Efforts to emulate the formidable information processing capabilities of the brain through neuromorphic engineering have been bolstered by recent progress in the fabrication of nonlinear, nanoscale circuit elements that exhibit synapse-like operational characteristics. However, conventional fabrication techniques are unable to efficiently generate structures with the highly complex interconnectivity found in biological neuronal networks. Here we demonstrate the physical realization of a self-assembled neuromorphic device which implements basic concepts of systems neuroscience through a hardware-based platform comprised of over a billion interconnected atomic-switch inorganic synapses embedded in a complex network of silver nanowires. Observations of network activation and passive harmonic generation demonstrate a collective response to input stimulus in agreement with recent theoretical predictions. Further, emergent behaviors unique to the complex network of atomic switches and akin to brain function are observed, namely spatially distributed memory, recurrent dynamics and the activation of feedforward subnetworks. These devices display the functional characteristics required for implementing unconventional, biologically and neurally inspired computational methodologies in a synthetic experimental system.
format	article
author	Audrius V Avizienis Henry O Sillin Cristina Martin-Olmos Hsien Hang Shieh Masakazu Aono Adam Z Stieg James K Gimzewski
author_facet	Audrius V Avizienis Henry O Sillin Cristina Martin-Olmos Hsien Hang Shieh Masakazu Aono Adam Z Stieg James K Gimzewski
author_sort	Audrius V Avizienis
title	Neuromorphic atomic switch networks.
title_short	Neuromorphic atomic switch networks.
title_full	Neuromorphic atomic switch networks.
title_fullStr	Neuromorphic atomic switch networks.
title_full_unstemmed	Neuromorphic atomic switch networks.
title_sort	neuromorphic atomic switch networks.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/16a32aa2675f4695a7c2f4d8add09573
work_keys_str_mv	AT audriusvavizienis neuromorphicatomicswitchnetworks AT henryosillin neuromorphicatomicswitchnetworks AT cristinamartinolmos neuromorphicatomicswitchnetworks AT hsienhangshieh neuromorphicatomicswitchnetworks AT masakazuaono neuromorphicatomicswitchnetworks AT adamzstieg neuromorphicatomicswitchnetworks AT jameskgimzewski neuromorphicatomicswitchnetworks
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Neuromorphic atomic switch networks.

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