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The Hopf oscillator has been shown to capture many phenomena of the auditory and vestibular systems. These systems exhibit remarkable temporal resolution and sensitivity to weak signals, as they are able to detect sounds that induce motion…

混沌动力学 · 物理学 2019-05-22 Justin Faber , Dolores Bozovic

Epilepsy is a brain disorder due to abnormalactivity of neurons and recording of seizures is of primary interest in the evaluation of epileptic patients. A seizureis the phenomenon of rhythmicity discharge from either a local area or the…

信号处理 · 电气工程与系统科学 2019-03-26 Hesam Akbari , Somayeh Saraf Esmaili , Sima Farzollah Zadeh

Given nonstationary data, one generally wants to extract the trend from the noise by smoothing or filtering. However, it is often important to delineate a third intermediate category, that we call high frequency (HF) features: this is the…

信号处理 · 电气工程与系统科学 2019-12-02 Mathieu Mezache , Marc Hoffmann , Human Rezaei , Marie Doumic

Localizing sources of troublesome oscillations, particularly forced oscillations (FOs), in power systems has received considerable attention over the last few years. This is driven in part by the massive deployment of phasor measurement…

应用统计 · 统计学 2024-09-04 Rajasekhar Anguluri , Anamitra Pal

Electrophysiological observation plays a major role in epilepsy evaluation. However, human interpretation of brain signals is subjective and prone to misdiagnosis. Automating this process, especially seizure detection relying on scalp-based…

机器学习 · 计算机科学 2018-07-06 David Ahmedt-Aristizabal , Clinton Fookes , Kien Nguyen , Sridha Sridharan

Pattern classification in electroencephalography (EEG) signals is an important problem in biomedical engineering since it enables the detection of brain activity, particularly the early detection of epileptic seizures. In this paper, we…

应用统计 · 统计学 2024-07-04 Antonio Quintero-Rincón , Jorge Prendes , Valeria Muro , Carlos D'Giano

Epileptic seizures are one of the most crucial neurological disorders, and their early diagnosis will help the clinicians to provide accurate treatment for the patients. The electroencephalogram (EEG) signals are widely used for epileptic…

A reexamination of period finding algorithms is prompted by new large area astronomical sky surveys that can identify billions of individual sources having a thousand or more observations per source. This large increase in data necessitates…

天体物理仪器与方法 · 物理学 2025-02-05 Douglas P. Finkbeiner , Thomas A. Prince , Samuel E. Whitebook

This work introduces a new approach to the Epileptic Spasms (ESES) detection based on the EEG signals using Vision Transformers (ViT). Classic ESES detection approaches have usually been performed with manual processing or conventional…

神经元与认知 · 定量生物学 2024-12-18 Wei Gong , Yaru Li

For the past few years, we have developed flexible, active, multiplexed recording devices for high resolution recording over large, clinically relevant areas in the brain. While this technology has enabled a much higher-resolution view of…

神经元与认知 · 定量生物学 2017-06-06 Yilin Song , Jonathan Viventi , Yao Wang

Magnetoencephalography (MEG) recordings of patients with epilepsy exhibit spikes, a typical biomarker of the pathology. Detecting those spikes allows accurate localization of brain regions triggering seizures. Spike detection is often…

计算机视觉与模式识别 · 计算机科学 2023-10-16 Pauline Mouches , Thibaut Dejean , Julien Jung , Romain Bouet , Carole Lartizien , Romain Quentin

Epilepsy is one of the most common neurological disorders that can be diagnosed through electroencephalogram (EEG), in which the following epileptic events can be observed: pre-ictal, ictal, post-ictal, and interictal. In this paper, we…

机器学习 · 计算机科学 2021-02-12 Jefferson Tales Oliva , João Luís Garcia Rosa

Identifying seizure activities in non-stationary electroencephalography (EEG) is a challenging task, since it is time-consuming, burdensome, and dependent on expensive human resources and subject to error and bias. A computerized seizure…

信号处理 · 电气工程与系统科学 2020-04-29 S. Sheykhivand , T. Yousefi Rezaii , Z. Mousavi , A. Delpak , A. Farzamnia

Seizures are one of the defining symptoms in patients with epilepsy, and due to their unannounced occurrence, they can pose a severe risk for the individual that suffers it. New research efforts are showing a promising future for the…

机器学习 · 计算机科学 2021-08-09 Carlos H. Mendoza-Cardenas , Austin J. Brockmeier

Epilepsy, affecting approximately 50 million people globally, is characterized by abnormal brain activity and remains challenging to treat. The diagnosis of epilepsy relies heavily on electroencephalogram (EEG) data, where specialists…

Like the ordinary power spectrum, higher-order spectra (HOS) describe signal properties that are invariant under translations in time. Unlike the power spectrum, HOS retain phase information from which details of the signal waveform can be…

信号处理 · 电气工程与系统科学 2019-08-27 Christopher K. Kovach , Matthew A. Howard

The recent introduction of coherent optical communications has created a compelling need for ultra-fast phase-sensitive measurement techniques operating at milliwatt peak power levels and in time scales ranging from sub-picoseconds to…

Higher Order Spectral (HOS) analysis is often applied effectively to analyze many bio-medical signals to detect nonlinear and non-Gaussian processes. One of the most basic HOS methods is the bispectral estimation, which extracts the degree…

医学物理 · 物理学 2018-09-25 Yamini Kotriwar , Sneha Kachhara , K. P. Harikrishnan , G. Ambika

High-Q optical resonators allow label-free detection of individual nanoparticles through perturbation of optical signatures but have practical limitations due to reliance on random diffusion to deliver particles to the sensing region. We…

光学 · 物理学 2016-10-03 Jeewon Suh , Kewen Han , Christopher W Peterson , Gaurav Bahl

Two techniques that employ equally spaced trains of optical pulses to map an optical high frequency into a low frequency modulation of the signal that can be detected in real time are compared. The development of phase-stable optical…

量子物理 · 物理学 2017-08-22 Kochise Bennett , Jeremy Rouxel , Shaul Mukamel