Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network

This work aims to show that long transient processes in mesascale models of thalamocortical brain network can appear in very general case, in particular for different number of elements in the ensemble (different level of detalization) and different initial phase of external driving, with these regi...

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Autores principales:	Egorov, Nikita Михайлович, Ponomarenko, Vladimir Ivanovich, Melnikova, Sofia Nikolaevna, Sysoev, Ilya V., Sysoeva, Marina Vyacheslavovna
Formato:	article
Lenguaje:	EN RU
Publicado:	Saratov State University 2021
Materias:	electronic model thalamocortical brain network epileptiform activity scalability variability Physics QC1-999
Acceso en línea:	https://doaj.org/article/39f18b3e9d0040e781097fd7df9ea91f
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id	oai:doaj.org-article:39f18b3e9d0040e781097fd7df9ea91f
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spelling	oai:doaj.org-article:39f18b3e9d0040e781097fd7df9ea91f2021-11-30T10:49:19ZCommon mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network0869-66322542-190510.18500/0869-6632-2021-29-6-927-942https://doaj.org/article/39f18b3e9d0040e781097fd7df9ea91f2021-11-01T00:00:00Zhttps://andjournal.sgu.ru/sites/andjournal.sgu.ru/files/text-pdf/2021/11/egorov_et_al_927-942.pdfhttps://doaj.org/toc/0869-6632https://doaj.org/toc/2542-1905This work aims to show that long transient processes in mesascale models of thalamocortical brain network can appear in very general case, in particular for different number of elements in the ensemble (different level of detalization) and different initial phase of external driving, with these regimes surviving at small variations of number and structure of couplings. Methods. Thalamocortical brain networks are modelled using electronic circuit realized using computer SPICE eluating software. FitzHugh – Nagumo analog generator is used as a single circuit element. Results. Long quasiregular and nonregular oscillation processes with stationary amplitude were shown to occur in ensembles of 14, 28 and 56 model FitzHug – Nagumo generators. The dependency of transient process length on the external driving initial phase and particular coupling matrix structure was studied. Conclusion. The proposed electronic models of thalamocortical system were proved to reproduce the pathological regimes of brain activity in similar way despite the number of elements in the circuit, connectivity matrix and initial driving phase.Egorov, Nikita МихайловичPonomarenko, Vladimir IvanovichMelnikova, Sofia NikolaevnaSysoev, Ilya V.Sysoeva, Marina VyacheslavovnaSaratov State Universityarticleelectronic modelthalamocortical brain networkepileptiform activityscalabilityvariabilityPhysicsQC1-999ENRUИзвестия высших учебных заведений: Прикладная нелинейная динамика, Vol 29, Iss 6, Pp 927-942 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU
topic	electronic model thalamocortical brain network epileptiform activity scalability variability Physics QC1-999
spellingShingle	electronic model thalamocortical brain network epileptiform activity scalability variability Physics QC1-999 Egorov, Nikita Михайлович Ponomarenko, Vladimir Ivanovich Melnikova, Sofia Nikolaevna Sysoev, Ilya V. Sysoeva, Marina Vyacheslavovna Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
description	This work aims to show that long transient processes in mesascale models of thalamocortical brain network can appear in very general case, in particular for different number of elements in the ensemble (different level of detalization) and different initial phase of external driving, with these regimes surviving at small variations of number and structure of couplings. Methods. Thalamocortical brain networks are modelled using electronic circuit realized using computer SPICE eluating software. FitzHugh – Nagumo analog generator is used as a single circuit element. Results. Long quasiregular and nonregular oscillation processes with stationary amplitude were shown to occur in ensembles of 14, 28 and 56 model FitzHug – Nagumo generators. The dependency of transient process length on the external driving initial phase and particular coupling matrix structure was studied. Conclusion. The proposed electronic models of thalamocortical system were proved to reproduce the pathological regimes of brain activity in similar way despite the number of elements in the circuit, connectivity matrix and initial driving phase.
format	article
author	Egorov, Nikita Михайлович Ponomarenko, Vladimir Ivanovich Melnikova, Sofia Nikolaevna Sysoev, Ilya V. Sysoeva, Marina Vyacheslavovna
author_facet	Egorov, Nikita Михайлович Ponomarenko, Vladimir Ivanovich Melnikova, Sofia Nikolaevna Sysoev, Ilya V. Sysoeva, Marina Vyacheslavovna
author_sort	Egorov, Nikita Михайлович
title	Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
title_short	Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
title_full	Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
title_fullStr	Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
title_full_unstemmed	Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
title_sort	common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network
publisher	Saratov State University
publishDate	2021
url	https://doaj.org/article/39f18b3e9d0040e781097fd7df9ea91f
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Common mechanisms of attractorless oscillatory regimes in radioengineering models of brain thalamocortical network

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