| Title: | Disinhibition-induced transitions between absence and tonic-clonic epileptic seizures |
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| Authors: | ID Fan, Denggui (Author)
ID Wang, Qingyun (Author)
ID Perc, Matjaž (Author) |
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| Files: |  Scientific_Reports_2015_Fan,_Wang,_Perc_Disinhibition-induced_transitions_between_absence_and_tonic-clonic_epileptic_seizures.pdf (2,30 MB)
MD5: C0062E26E27D4D5B837629BEFEA91D12
 http://www.nature.com/articles/srep12618
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FNM - Faculty of Natural Sciences and Mathematics
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| Abstract: | Electrophysiological experiments have long revealed the existence of two-way transitions between absence and tonic-clonic epileptic seizures in the cerebral cortex. Based on a modified spatially-extended Taylor & Baier neural field model, we here propose a computational framework to mathematically describe the transition dynamics between these epileptic seizures. We first demonstrate the existence of various transition types that are induced by disinhibitory functions between two inhibitory variables in an isolated Taylor & Baier model. Moreover, we show that these disinhibition-induced transitions can lead to stable tonic-clonic oscillations as well as periodic spike with slow-wave discharges, which are the hallmark of absence seizures. We also observe fascinating dynamical states, such as periodic 2-spike with slow-wave discharges, tonic death, bursting oscillations, as well as saturated firing. Most importantly, we identify paths that represent physiologically plausible transitions between absence and tonic-clonic seizures in the modified spatially-extended Taylor & Baier model. |
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| Keywords: | epilepsy, neuronal dynamics, synchronization, biophysics |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2015 |
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| Number of pages: | str. 1-12 |
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| Numbering: | Letn. 5 |
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| PID: | 20.500.12556/DKUM-60187  |
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| ISSN: | 2045-2322 |
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| UDC: | 53 |
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| ISSN on article: | 2045-2322 |
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| COBISS.SI-ID: | 21556488 |
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| DOI: | 10.1038/srep12618 |
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| NUK URN: | URN:SI:UM:DK:CZDGZXTK |
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| Publication date in DKUM: | 23.06.2017 |
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| Views: | 1369 |
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| Downloads: | 404 |
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| Metadata: |    |
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| Categories: | Misc.
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