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- W3201839905 abstract "As a typical generalized epilepsy, absence epilepsy can be easily identified during absence seizures (AS) based on the electrophysiological hallmark that synchronous 2–4 Hz spike and wave discharges (SWDs) widely observed in the clinical electroencephalography (EEG). Inspired by animal experimental studies that AS may be regulated by neural circuits within and outside the corticothalamic (CT) network, we employed computational models to further dissect the underlying biophysical mechanisms. Simulations show that in the CT network, enhancing the thalamic feed-forward inhibition can effectively abate SWDs. Interestingly, the inhibitions mediated by GABA(_{text {A}}) and GABA(_{text {B}}) in the pathway from the thalamic reticular nucleus (TRN) to the specific relay nuclei of thalamus (SRN) play different roles in controlling AS. Specifically, unlike GABA(_{text {B}}) inhibition, GABA(_{text {A}}) inhibition has more influences on the dominant frequency of neural oscillations. On the other hand, the basal ganglia (BG) output pathways from the substantia nigra pars reticulate (SNr) to the TRN and SRN have been demonstrated to contribute to suppressing AS. Note that the control mechanism underlying the SNr-TRN pathway is mainly due to the collision in the TRN, whereas the weakened GABA(_{text {B}}) inhibition is responsible for the suppression of AS via the SNr-SRN pathway. More importantly, the competition between the two output pathways can induce BG bidirectionally controlling AS. Besides these observations, we further found that AS can also be terminated by the newly identified inhibitory pallido-cotrical pathway in our model. These findings highlight the neural circuits that have close associations with the CT network, including internal and external pathways, may have functional roles in regulating AS and may provide a novel insight into the treatment of absence epilepsy." @default.
- W3201839905 created "2021-10-11" @default.
- W3201839905 creator A5017427215 @default.
- W3201839905 date "2021-01-01" @default.
- W3201839905 modified "2023-10-17" @default.
- W3201839905 title "Multiple Control of Absence Seizures in the Brain: A Computational Study" @default.
- W3201839905 doi "https://doi.org/10.1007/978-981-16-0317-4_50" @default.
- W3201839905 hasPublicationYear "2021" @default.
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