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Background: Electroencephalographic (EEG) indicators for anaesthesia depth are being developed. Here, we propose novel EEG parameters created by using two kinds of waveforms discriminated by voltage thresholds from a new perspective.…

神经元与认知 · 定量生物学 2019-10-08 Chika Koyama , Taichi Haruna , Satoshi Hagihira , Kazuto Yamashita

Probability density functions and the probability of Sz occurrence conditional upon the time elapsed from the previous Sz were estimated using the energy and intervals of SZ in prolonged recordings from subjects with localization- related…

神经元与认知 · 定量生物学 2008-02-04 Ivan Osorio , Mark G. Frei , Didier Sornette , John Milton

The amount of power in different frequency bands of the electroencephalogram (EEG) carries information about the behavioral state of a subject. Hence, neurologists treating epileptic patients monitor the temporal evolution of the different…

神经元与认知 · 定量生物学 2020-06-17 Melisa Maidana Capitán , Nuria Cámpora , Claudio Sebastián , Sigvard Silvia Kochen , Inés Samengo

Burst suppression is an electroencephalography (EEG) pattern associated with profoundly inactivated brain states characterized by cerebral metabolic depression. Its distinctive feature is alternation between short temporal segments of…

定量方法 · 定量生物学 2020-12-07 Gabriel Schamberg , Sourish Chakravarty , Taylor E. Baum , Emery N. Brown

Epilepsy is a neurological condition such that it affects the brain and the nervous system. It is characterized by recurrent seizures, which are physical reactions to sudden, usually brief, excessive electrical discharges in a group of…

信号处理 · 电气工程与系统科学 2018-07-30 Asmaa Hamad , Aboul Ella Hassanien , Aly A. Fahmy , Essam H. Houssein

We investigate several quantifiers of the electroencephalogram (EEG) signal with respect to their ability to indicate depth of anesthesia. For 17 patients anesthetized with Sevoflurane, three established measures (two spectral and one based…

混沌动力学 · 物理学 2009-10-31 G. Widman , T. Schreiber , B. Rehberg , A. Hoeft , C. E. Elger

We perform an experimental study of the time behavior of the $\alpha$-wave events occuring in human electroencephalographic signals. We find that the fraction of the time spent in an $\alpha$-burst of time size $\tau$ exhibits a scaling…

生物物理 · 物理学 2009-10-31 Y. Georgelin , L. Poupard , R. Sartene , J. C. Wallet

Background: Investigation of the functioning of the brain in living systems has been a major effort amongst scientists and medical practitioners. Amongst the various disorder of the brain, epilepsy has drawn the most attention because this…

医学物理 · 物理学 2009-08-03 Md. Nurujjaman , Ramesh Naryanan , A. N. Sekar Iyengar

The energy and waiting time distributions are important properties for understanding the physical mechanism of repeating fast radio bursts (FRBs). Recently, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) detected the…

高能天体物理现象 · 物理学 2021-10-20 G. Q. Zhang , P. Wang , Q. Wu , F. Y. Wang , D. Li , Z. G. Dai , B. Zhang

Since the manual detection of electrographic seizures in continuous electroencephalogram (EEG) monitoring is very time-consuming and requires a trained expert, attempts to develop automatic seizure detection are diverse and ongoing. Machine…

信号处理 · 电气工程与系统科学 2019-08-02 Poomipat Boonyakitanont , Apiwat Lek-uthai , Krisnachai Chomtho , Jitkomut Songsiri

Fast Radio Bursts (FRBs) are energetic radio bursts that typically last for milliseconds. They are mostly of extragalactic origin, but the progenitors, trigger mechanisms and radiation processes are still largely unknown. Here we present a…

Epilepsy or the occurrence of epileptic seizures, is one of the world's most well-known neurological disorders affecting millions of people. Seizures mostly occur due to non-coordinated electrical discharges in the human brain and may cause…

机器学习 · 计算机科学 2023-03-14 Hitesh Raju , Ankit Sharma , Aoife Smeaton , Alan F. Smeaton

Epilepsy is the second most common brain disorder after migraine. Automatic detection of epileptic seizures can considerably improve the patients' quality of life. Current Electroencephalogram (EEG)-based seizure detection systems encounter…

信号处理 · 电气工程与系统科学 2018-03-28 Ramy Hussein , Hamid Palangi , Rabab Ward , Z. Jane Wang

Objective. To ascertain the existence of power-law distributions of inter-spike intervals (ISI) occurring during the progression of status epilepticus (SE), so that the emergence of critical states could be reasonably hypothesized as being…

神经元与认知 · 定量生物学 2015-01-08 Massimo Rizzi

Historically, the analysis of stimulus-dependent time-frequency patterns has been the cornerstone of most electroencephalography (EEG) studies. The abnormal oscillations in high-frequency waves associated with psychotic disorders during…

神经元与认知 · 定量生物学 2023-01-05 Sadi Md. Redwan , Md Palash Uddin , Anwaar Ulhaq , Muhammad Imran Sharif

Objective: The detection of epileptic seizures from scalp electroencephalogram (EEG) signals can facilitate early diagnosis and treatment. Previous studies suggested that the Gaussianity of EEG distributions changes depending on the…

信号处理 · 电气工程与系统科学 2021-03-03 Akira Furui , Ryota Onishi , Akihito Takeuchi , Tomoyuki Akiyama , Toshio Tsuji

Although recent studies have proposed seizure detection algorithms with good sensitivity performance, there is a remained challenge that they were hard to achieve significantly short detection latency in real-time scenarios. In this…

信号处理 · 电气工程与系统科学 2023-06-29 Yankun Xu , Jie Yang , Wenjie Ming , Shuang Wang , Mohamad Sawan

Epilepsy is a prevalent neurological disorder characterized by recurrent and unpredictable seizures, necessitating accurate prediction for effective management and patient care. Application of machine learning (ML) on electroencephalogram…

信号处理 · 电气工程与系统科学 2023-08-11 Md. Simul Hasan Talukder , Rejwan Bin Sulaiman

This paper deals with the detection of mu-suppression from electroencephalographic (EEG) signals in brain-computer interface (BCI). For this purpose, an efficient algorithm is proposed based on a statistical model and a linear classifier.…

信号处理 · 电气工程与系统科学 2020-10-27 Antonio Quintero-Rincón , Carlos D'Giano , Hadj Batatia

We report on the temporal behavior of the high-energy power law continuum component of gamma-ray burst spectra with data obtained by the Burst and Transient Source Experiment. We have selected 126 high fluence and high flux bursts from the…

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