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Long-term electrocorticographic monitoring and pathological high-frequency oscillations in tumor-related epilepsy
Clinical Neurophysiology. 2017. Vol. 128. No. 9. P. e288.
Arkhipova N., Aleksandrov M., Chukhlovin A., Pavlovskaya M., Kostenko I.
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Arkhipova N., Aleksandrov M., Clinical Neurophysiology 2018 Vol. 129 No. 5 P. 110-111
Electrocorticography (ECoG) is a standard procedure for the localization of the epileptogeniczone during the surgical treatment of symptomatic epilepsy. The purpose of this study was to evaluate the diagnostic efficacy of intraoperative pre- and post-resective ECoG for the localization of the epileptogenic zone in patients with symptomatic epilepsy associated with supratentorial brain tumors. 1. In the surgical treatment of symptomatic epilepsy associated with intracerebral neoplasm, intraoperative ...
Added: June 26, 2018
Arkhipova N., Aleksandrov M., Chukhlovin A. et al., Clinical Neurophysiology 2017 Vol. 128 No. 9 P. 228
Objective Removal of brain tissue generating pathological high-frequency oscillations (pHFOs) has been related to better seizure outcome than resection of seizure onset zone. However, there is still a lack of understanding what oscillations are to be considered pathological. Methods A female patient (age 53) with 10 year duration of temporal lobe tumor-related epilepsy was admitted ...
Added: June 26, 2018
Fedele T., Burnos S., Krayenbuehl N. et al., Scientific Reports 2017 Vol. 7 P. 1-10
High frequency oscillations (HFOs) are recognized as biomarkers for epileptogenic brain tissue. A remaining challenge for epilepsy surgery is the prospective classification of tissue sampled by individual electrode contacts. We analyzed long-term invasive recordings of 20 consecutive patients who subsequently underwent epilepsy surgery. HFOs were defined prospectively by a previously validated, automated algorithm in the ...
Added: October 9, 2019
Канцерова А. О., Окнина Л. Б., Машеров Е. Л. et al., В кн. : Клиническая нейрофизиология и нейрореабилитация / Сборник статей и тезисов Восьмой всероссийской научно-практической конференции с международным участием. : СПб. : ООО «Оборудование для нейрофизиологии и функциональной диагностики», 2020. С. 61-62.
В Материалах конференции размещены тезисы докладов, охвативших основные разделы современной
клинической нейрофизиологии: электроэнцефалография, электронейромиография, регистрация вы
званной биоэлектрической активности при различных модальностях стимуляции. В представленных
докладах обобщен накопленный разными коллективами опыт по организации и методике клинических
нейрофизиологических исследований, мониторингу эффективности терапии заболеваний и поврежде
ний нервной системы. В конференции большое участие приняли специалисты по нейрореабилитации,
что также нашло свое отражение в ...
Added: November 13, 2020
Volkova K., Lebedev M., Kaplan A. et al., Frontiers in Neuroinformatics 2019 No. 13 P. 1-20
Electrocorticography (ECoG) holds promise to provide efficient neuroprosthetic solutions for people suffering from neurological disabilities. This recording technique combines adequate temporal and spatial resolution with the lower risks of medical complications compared to the other invasive methods. ECoG is routinely used in clinical practice for preoperative cortical mapping in epileptic patients. During the last two ...
Added: April 4, 2020
Fedosov N., Ossadtchi A., , in : Proceedings of the 20th World Congress of Psychophysiology (IOP 2021) of the International Organization of Psychophysiology (IOP). : Elsevier, 2021. P. 190-190.
Added: December 8, 2021
Karpychev V., , in : 33rd international Epilepsy Congress Bangkok, Thailand | 22–26 June 2019 Satellite Symposia Abstracts. Vol. 60. Issue S2.: Wiley Online Library, 2019. P. 86-87.
Purpose: High frequency oscillations (HFO 80–500 Hz) are recognized as biomarkers for epileptogenic brain tissue to be resected in epilepsy surgery. While several studies describe group level statistics, assessment in the individual patient still needs further validation. Here we compare automated HFO analysis with routine pre- surgical evaluation.
Method: We analyzed long- term stereo EEG recordings ...
Added: November 17, 2020
Dähne S., Nikulin V., Ramírez D. et al., Neuroimage 2014 No. 96 P. 334-348
Phase synchronization among neuronal oscillations within the same frequency band has been hypothesized to be a major mechanism for communication between different brain areas. On the other hand, cross-frequency communications are more flexible allowing interactions between oscillations with different frequencies. Among such cross-frequency interactions amplitude-to-amplitude interactions are of a special interest as they show how ...
Added: October 23, 2014
СПб. : ООО «Оборудование для нейрофизиологии и функциональной диагностики», 2020
В Материалах конференции размещены тезисы докладов, охвативших основные разделы современной
клинической нейрофизиологии: электроэнцефалография, электронейромиография, регистрация вы
званной биоэлектрической активности при различных модальностях стимуляции. В представленных
докладах обобщен накопленный разными коллективами опыт по организации и методике клинических
нейрофизиологических исследований, мониторингу эффективности терапии заболеваний и поврежде
ний нервной системы. В конференции большое участие приняли специалисты по нейрореабилитации,
что также нашло свое отражение в ...
Added: November 13, 2020
Cortical and autonomic responses during staged Taoist meditation: two distinct meditation strategies
Volodina M., Smetanin N., Lebedev M. et al., Plos One 2021 Vol. 16 No. 12 Article e0260626
Meditation is a consciousness state associated with specific physiological and neural correlates. Numerous investigations of these correlates reported controversial results which prevented a consistent depiction of the underlying neurophysiological processes. Here we investigated the dynamics of multiple neurophysiological indicators during a staged meditation session. We measured the physiological changes at rest and during the guided ...
Added: November 18, 2021
Panicheva P., Litvinova T., , in : Proceedings of the 25th Conference of Open Innovations Association FRUCT, University of Helsinki, Helsinki, Finland. : Helsinki : IEEE, 2019. P. 241-249.
Schizophrenia is widely known to manifest in language disturbance. Namely, speech incoherence, tangentiality, derailment are indicative of thought disorder characteristic of schizophrenia. Recent advances in distributional semantics have made it possible to measure coherence in text in a unified and objective manner. It has been shown that semantic coherence measures based on distributional semantic models ...
Added: October 29, 2020
Karpychev V., Malyutina S., Zhuravleva A. et al., Epilepsy and Behavior 2023 Vol. 147 Article 109407
Objective
Temporal lobe epilepsy (TLE) is a network disorder that alters the total organization of the language-related network. Task-based functional magnetic resonance imaging (fMRI) aimed at functional connectivity is a direct method to investigate how the network is reorganized. However, such studies are scarce and represented mostly by the resting-state analysis of the individual connections between ...
Added: October 21, 2023
Kleeva D., Soghoyan G., Komoltsev I. et al., Journal of Neural Engineering 2022 Vol. 19 No. 3 Article 036003
Objective. Epilepsy is a widely spread neurological disease, whose treatment often requires resection of the pathological cortical tissue. Interictal spike analysis observed in the non-invasively collected EEG or MEG data offers an attractive way to localize epileptogenic cortical structures for surgery planning purposes. Interictal spike detection in lengthy multichannel data is a daunting task that ...
Added: May 29, 2022
High-density ECoG improves the detection of high frequency oscillations that predict seizure outcome
Boran E., Ramantani G., Krayenbuehl N. et al., Clinical Neurophysiology 2019 Vol. 130 No. 10 P. 1882-1888
Objectives
Residual fast ripples (FR) in the intraoperative ECoG are highly specific predictors of postsurgical seizure recurrence. However, a FR is generated by a small patch of cortical tissue. Spatial sampling with standard electrodes may thus miss clinically relevant information.
Methods
We analyzed FR rates in the intraoperative ECoG of 22 patients that underwent resective epilepsy surgery. We ...
Added: May 18, 2020
Fedele T., Ramantani G., Sarnthein J., Clinical Neurophysiology 2019 Vol. 130 No. 5 P. 624-626
Over 20 years of enthusiastic research have served to establish high frequency oscillations (HFO) as a promising biomarker of epileptogenicity, both in animal models and in refractory focal epilepsy patients (Jacobs et al., 2010, 2012; Fedele et al., 2017b; Frauscher et al., 2017; Zijlmans et al., 2017; Gotman, 2018). Several studies have relied on higher ...
Added: July 23, 2019
Yurchenko A., Golovteev A., Kopachev D. et al., Epilepsy and Behavior 2017 Vol. 75 P. 127-133
Previous research on linguistic performance at the single-word level in patients with temporal lobe epilepsy (TLE) has mostly been limited to the comprehension and production of nouns, and findings have been inconsistent. Results are likewise limited and controversial regarding the lateralization of the epileptogenic focus. The present study investigates comprehension and production of nouns and ...
Added: October 10, 2017
Мухин К. Ю., Пылаева О. А., Borodin R. et al., Русский журнал детской неврологии 2015 Т. X № 1 С. 4-15
Research on comparative efficаcy and tolerability of monotherapy with Depakine chronosphere, drugs of Carbamazepine group with ex- tended release and oxcarbazepine in symptomatic and cryptogenic focal epilepsy has been conducted at Svt. Luka’s Institute of Child Neurol- ogy and Epilepsy (ICNE) (Moscow). This retrospective study covers a random sample of patients treated in ICNE in ...
Added: October 14, 2016
Паникратова Я. Р., Абдуллина Е. Г., Лебедева И. С. et al., Российский журнал когнитивной науки 2021 Т. 8 № 1-2 С. 28-52
Impaired communication is one of the key features of schizophrenia. Therefore, an investigation of the disease’s nature calls for a better understanding of the neural underpinnings of not only verbal communication but also the lesser-studied non-verbal communication. Spontaneous gestures accompanying oral speech are one of the most important channels for the transmission of non-verbal informationImpaired ...
Added: July 14, 2022
Lebedev M., Ossadtchi A., / Cold Spring Harbor Laboratory. Series http://dx.doi.org/ "BioRxiv". 2019.
Back in 2012, Churchland and his colleagues proposed that “rotational dynamics”, uncovered through linear transformations of multidimensional neuronal data, represent a fundamental type of neuronal population processing in a variety of organisms, from the isolated leech central nervous system to the primate motor cortex. Here, we evaluated this claim using Churchland’s own data and simple ...
Added: April 14, 2020
Volkova K., Dagaev N., Киселёв А. С. et al., Журнал высшей нервной деятельности им. И.П. Павлова 2017 Т. 67 № 4 С. 504-520
Brain-computer interfaces find application in a number of different areas and have the potential to be used for research as well as for practical purposes. The clinical use of BCI includes current studies on neurorehabilitation ([Frolov et al., 2013; Ang et al., 2010]), and there is the prospect of using BCI to restore movement and ...
Added: October 19, 2017
Lebedev M., Ossadtchi A., Okorokova L. et al., , in : Brain–Computer Interface Research. A State-of-the-Art Summary 8. : Springer, 2020. P. 11-23.
Handwriting is an advanced motor skill and one of the key developments in human culture. Here we show that handwriting can be decoded—offline and online—from electromyographic (EMG) signals recorded from multiple hand and forearm muscles. We convert EMGs into continuous handwriting traces and into discretely decoded font characters. For this purpose, we use Wiener and ...
Added: February 4, 2021
Buchin A., Chizov A., Huberfeld G. et al., Journal of Neuroscience 2016 Vol. 36 No. 46 P. 11619-11633
Pharmacoresistant epilepsy is a chronic neurological condition in which a basal brain hyperexcitability results in paroxysmal hypersynchronous neuronal discharges. Human temporal lobe epilepsy has been associated with dysfunction or loss of the potassium-chloride cotransporter KCC2 in a subset of pyramidal cells in the subiculum, a key structure generating epileptic activities. KCC2 regulates intraneuronal chloride and ...
Added: December 20, 2016
Adaptation and inhibition control pathological synchronization in a model of focal epileptic seizure
Buchin A., Kerr C. C., Huberfeld G. et al., eNeuro 2018 Vol. 0019-18 P. 1-14
Pharmacoresistant epilepsy is a common neurological disorder in which increased neuronal intrinsic excitability and synaptic excitation lead to pathologically synchronous behavior in the brain. In the majority of experimental and theoretical epilepsy models, epilepsy is associated with reduced inhibition in the pathological neural circuits, yet effects of intrinsic excitability are usually not explicitly analyzed. Here ...
Added: December 20, 2018
Sitovskaya D., Zabrodskaya Y., Parshakov P. et al., International Journal of Molecular Sciences 2023 Vol. 24 No. 19 Article 14490
The European Commission of the International League Against Epilepsy (ILAE) has identified glial mechanisms of seizures and epileptogenesis as top research priorities. The aim of our study was to conduct a comparative analysis of the expression levels of cytoskeletal proteins (glial fibrillar acidic protein (GFAP) and vimentin), protective protein S100, and proapoptotic caspase-3 protein in ...
Added: October 2, 2023