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Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics
Responsive neurostimulation is increasingly required to probe neural circuit function and treat neuropsychiatric disorders. We introduce a multiplex-then-amplify (MTA) scheme that, in contrast to current approaches (which necessitate an equal number of amplifiers as number of channels), only require...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8157942/ https://www.ncbi.nlm.nih.gov/pubmed/33972429 http://dx.doi.org/10.1073/pnas.2022659118 |
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author | Zhao, Zifang Cea, Claudia Gelinas, Jennifer N. Khodagholy, Dion |
author_facet | Zhao, Zifang Cea, Claudia Gelinas, Jennifer N. Khodagholy, Dion |
author_sort | Zhao, Zifang |
collection | PubMed |
description | Responsive neurostimulation is increasingly required to probe neural circuit function and treat neuropsychiatric disorders. We introduce a multiplex-then-amplify (MTA) scheme that, in contrast to current approaches (which necessitate an equal number of amplifiers as number of channels), only requires one amplifier per multiplexer, significantly reducing the number of components and the size of electronics in multichannel acquisition systems. It also enables simultaneous stimulation of arbitrary waveforms on multiple independent channels. We validated the function of MTA by developing a fully implantable, responsive embedded system that merges the ability to acquire individual neural action potentials using conformable conducting polymer-based electrodes with real-time onboard processing, low-latency arbitrary waveform stimulation, and local data storage within a miniaturized physical footprint. We verified established responsive neurostimulation protocols and developed a network intervention to suppress pathological coupling between the hippocampus and cortex during interictal epileptiform discharges. The MTA design enables effective, self-contained, chronic neural network manipulation with translational relevance to the treatment of neuropsychiatric disease. |
format | Online Article Text |
id | pubmed-8157942 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-81579422021-05-28 Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics Zhao, Zifang Cea, Claudia Gelinas, Jennifer N. Khodagholy, Dion Proc Natl Acad Sci U S A Physical Sciences Responsive neurostimulation is increasingly required to probe neural circuit function and treat neuropsychiatric disorders. We introduce a multiplex-then-amplify (MTA) scheme that, in contrast to current approaches (which necessitate an equal number of amplifiers as number of channels), only requires one amplifier per multiplexer, significantly reducing the number of components and the size of electronics in multichannel acquisition systems. It also enables simultaneous stimulation of arbitrary waveforms on multiple independent channels. We validated the function of MTA by developing a fully implantable, responsive embedded system that merges the ability to acquire individual neural action potentials using conformable conducting polymer-based electrodes with real-time onboard processing, low-latency arbitrary waveform stimulation, and local data storage within a miniaturized physical footprint. We verified established responsive neurostimulation protocols and developed a network intervention to suppress pathological coupling between the hippocampus and cortex during interictal epileptiform discharges. The MTA design enables effective, self-contained, chronic neural network manipulation with translational relevance to the treatment of neuropsychiatric disease. National Academy of Sciences 2021-05-18 2021-05-10 /pmc/articles/PMC8157942/ /pubmed/33972429 http://dx.doi.org/10.1073/pnas.2022659118 Text en Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Zhao, Zifang Cea, Claudia Gelinas, Jennifer N. Khodagholy, Dion Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title | Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title_full | Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title_fullStr | Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title_full_unstemmed | Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title_short | Responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
title_sort | responsive manipulation of neural circuit pathology by fully implantable, front-end multiplexed embedded neuroelectronics |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8157942/ https://www.ncbi.nlm.nih.gov/pubmed/33972429 http://dx.doi.org/10.1073/pnas.2022659118 |
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