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Asynchronous and Coherent Dynamics in Balanced Excitatory-Inhibitory Spiking Networks
https://oist.repo.nii.ac.jp/records/2596
https://oist.repo.nii.ac.jp/records/25963486d6bd-29ad-4678-8aea-95b99e386ca4
名前 / ファイル | ライセンス | アクション |
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fnsys-15-752261 (3.2 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-03-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Asynchronous and Coherent Dynamics in Balanced Excitatory-Inhibitory Spiking Networks | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | balanced spiking neural populations | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | sparse inhibitory-excitatory networks | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | asynchronous dynamics | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | collective oscillations | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | neural mass model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | quadratic integrate and fire neuron | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | structural heterogeneity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | coherent chaos | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Bi, Hongjie
× Bi, Hongjie× di Volo, Matteo× Torcini, Alessandro |
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書誌情報 |
en : Frontiers in Systems Neuroscience 巻 15, p. 752261, 発行日 2021-12-10 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Dynamic excitatory-inhibitory (E-I) balance is a paradigmatic mechanism invoked to explain the irregular low firing activity observed in the cortex. However, we will show that the E-I balance can be at the origin of other regimes observable in the brain. The analysis is performed by combining extensive simulations of sparse E-I networks composed of N spiking neurons with analytical investigations of low dimensional neural mass models. The bifurcation diagrams, derived for the neural mass model, allow us to classify the possible asynchronous and coherent behaviors emerging in balanced E-I networks with structural heterogeneity for any finite in-degree K. Analytic mean-field (MF) results show that both supra and sub-threshold balanced asynchronous regimes are observable in our system in the limit N >> K >> 1. Due to the heterogeneity, the asynchronous states are characterized at the microscopic level by the splitting of the neurons in to three groups: silent, fluctuation, and mean driven. These features are consistent with experimental observations reported for heterogeneous neural circuits. The coherent rhythms observed in our system can range from periodic and quasi-periodic collective oscillations (COs) to coherent chaos. These rhythms are characterized by regular or irregular temporal fluctuations joined to spatial coherence somehow similar to coherent fluctuations observed in the cortex over multiple spatial scales. The COs can emerge due to two different mechanisms. A first mechanism analogous to the pyramidal-interneuron gamma (PING), usually invoked for the emergence of γ-oscillations. The second mechanism is intimately related to the presence of current fluctuations, which sustain COs characterized by an essentially simultaneous bursting of the two populations. We observe period-doubling cascades involving the PING-like COs finally leading to the appearance of coherent chaos. Fluctuation driven COs are usually observable in our system as quasi-periodic collective motions characterized by two incommensurate frequencies. However, for sufficiently strong current fluctuations these collective rhythms can lock. This represents a novel mechanism of frequency locking in neural populations promoted by intrinsic fluctuations. COs are observable for any finite in-degree K, however, their existence in the limit N >> K >> 1 appears as uncertain. | |||||
出版者 | ||||||
出版者 | Frontiers Media S.A. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1662-5137 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/34955768 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.3389/fnsys.2021.752261 | |||||
権利 | ||||||
権利情報 | © 2021 Bi, di Volo and Torcini. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.frontiersin.org/articles/10.3389/fnsys.2021.752261/full | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |