Quantify neuromagnetic network changes from pre-ictal to ictal activities in absence seizures
Neuroscience, ISSN: 0306-4522, Vol: 357, Page: 134-144
2017
- 28Citations
- 28Captures
- 1Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations28
- Citation Indexes28
- 28
- CrossRef19
- Captures28
- Readers28
- 28
- Mentions1
- News Mentions1
- News1
Most Recent News
Clinical Applications of High-Frequency Oscillations; HFOs
STUDY INFORMATION OFFICIAL TITLE: Localizing Functional Brain Cortices and Epileptogenic Zones With HFOs CURRENT STATUS: Enrolling by invitation STUDY TYPE: Observational SPONSOR AGENCY:Children's Hospital Medical
Article Description
The cortico–thalamo–cortical network plays a key role in childhood absence epilepsy (CAE). However, the exact interaction between the cortex and the thalamus remains incompletely understood. This study aimed to investigate the dynamic changes of frequency-dependent neural networks during the initialization of absence seizures. Magnetoencephalography data from 14 patients with CAE were recorded during and between seizures at a sampling rate of 6000 Hz and analyzed in seven frequency bands. Neuromagnetic sources were volumetrically scanned with accumulated source imaging. Effective connectivity networks of the entire brain, including the cortico–thalamo–cortical network, were evaluated at the source level through Granger causality analysis. The low-frequency (1–80 Hz) activities showed significant frontal cortical and parieto–occipito–temporal junction source localization around seizures. The high-frequency (80–250 Hz) oscillations showed predominant activities consistently localized in deep brain areas and medial frontal cortex. The increased cortico–thalamic effective connectivity was observed around seizures in both low- and high-frequency ranges. The direction was predominantly from the cortex to the thalamus at the early time, although the cortex that drove connectivity varied among subjects. The cerebral cortex plays a key role in driving the cortico–thalamic connections at the early portion of the initialization of absence seizures. The oscillatory activities in the thalamus could be triggered by networks from various regions in the cortex. The dynamic changes of neural network provide evidences that absence seizures are probably resulted from cortical initialized cortico–thalamic network.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S030645221730372X; http://dx.doi.org/10.1016/j.neuroscience.2017.05.038; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85020943161&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/28576731; https://linkinghub.elsevier.com/retrieve/pii/S030645221730372X; https://dx.doi.org/10.1016/j.neuroscience.2017.05.038
Elsevier BV
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