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Accurate electroencephalography (EEG) and magnetoencephalography (MEG) source localization and reconstruction are essential for understanding brain function, yet remain challenging because the underlying EEG/MEG inverse problem is…

最优化与控制 · 数学 2026-04-29 Julia Jurkowska , Joanna Dreszer , Monika Lewandowska , Krzysztof Tołpa , Tomasz Piotrowski

We present a novel solution to the problem of localizing magnetoencephalography (MEG) and electroencephalography (EEG) brain signals. The solution is sequential and iterative, and is based on minimizing the least-squares criterion by the…

信号处理 · 电气工程与系统科学 2022-02-03 Amir Adler , Mati Wax , Dimitrios Pantazis

In recent years, multiple noninvasive imaging modalities have been used to develop a better understanding of the human brain functionality, including positron emission tomography, single-photon emission computed tomography, and functional…

信号处理 · 电气工程与系统科学 2019-10-18 Shiva Asadzadeh , Tohid Yousefi Rezaii , Soosan Beheshti , Azra Delpak , Saeed Meshgini

The ability to reconstruct the kinematic parameters of hand movement using non-invasive electroencephalography (EEG) is essential for strength and endurance augmentation using exosuit/exoskeleton. For system development, the conventional…

信号处理 · 电气工程与系统科学 2022-05-13 Sidharth Pancholi , Amita Giri , Anant Jain , Lalan Kumar , Sitikantha Roy

Electroencephalography (EEG) and Magnetoencephalography (MEG) are pivotal in understanding brain activity but are limited by their poor spatial resolution. EEG/MEG source imaging (ESI) infers the high-resolution electric field distribution…

信号处理 · 电气工程与系统科学 2024-02-01 Song Wang , Chen Wei , Kexin Lou , Dongfeng Gu , Quanying Liu

Motor imagery (MI) classification using electroencephalography (EEG) signals is essential for advancing brain-computer interfaces (BCIs). Traditional EEG channel selection methods often face limitations, such as dependency on…

人机交互 · 计算机科学 2026-05-29 Dekka Muni Kumar , Dhruba Jyoti Kalita , Yogesh Kumar Meena

Electroencephalography (EEG) analysis is an important domain in the realm of Brain-Computer Interface (BCI) research. To ensure BCI devices are capable of providing practical applications in the real world, brain signal processing…

信号处理 · 电气工程与系统科学 2024-08-08 Teng Liang , Andrews Damoah

In this paper, a binaural beamforming algorithm for hearing aid applications is introduced.The beamforming algorithm is designed to be robust to some error in the estimate of the target speaker direction. The algorithm has two main…

音频与语音处理 · 电气工程与系统科学 2019-11-21 Hala As'ad , Martin Bouchard , Homayoun Kamkar-Parsi

Current non-invasive neuroimaging techniques trade off between spatial resolution and temporal resolution. While magnetoencephalography (MEG) can capture rapid neural dynamics and functional magnetic resonance imaging (fMRI) can spatially…

神经元与认知 · 定量生物学 2025-10-13 Beige Jerry Jin , Leila Wehbe

Magnetoencephalography (MEG) provides dynamic spatial-temporal insight of neural activities in the cortex. Because the number of possible sources is far greater than the number of MEG detectors, the proposition to localize sources directly…

定量方法 · 定量生物学 2009-03-06 Hung-I Pai , Chih-Yuan Tseng , H. C. Lee

Electrode density optimization in electroencephalography (EEG)-based Brain-Computer Interfaces (BCIs) requires balancing practical usability against signal fidelity, particularly for source localization. Reducing electrodes enhances…

神经元与认知 · 定量生物学 2025-10-14 Eva Guttmann-Flury , Yanyan Wei , Shan Zhao , Jian Zhao , Mohamad Sawan

Simultaneous EEG-fMRI is a multi-modal neuroimaging technique that provides complementary spatial and temporal resolution for inferring a latent source space of neural activity. In this paper we address this inference problem within the…

机器学习 · 计算机科学 2020-10-06 Xueqing Liu , Linbi Hong , Paul Sajda

Magnetoencephalography (MEG) has a high temporal resolution well-suited for studying perceptual learning. However, to identify where learning happens in the brain, one needs to ap- ply source localization techniques to project MEG sensor…

应用统计 · 统计学 2015-12-04 Ying Yang , Michael J. Tarr , Robert E. Kass

Two techniques are proposed to alleviate the computational burden of MUltiple SIgnal Classification (MUSIC) algorithm applied to Electroencephalogram (EEG) source localization. A significant reduction was achieved by parsing the cortex…

神经元与认知 · 定量生物学 2017-07-27 Seyede Mahya Safavi , Beth Lopour , Pai H. Chou

Electroencephalograms (EEG) are invaluable for treating neurological disorders, however, mapping EEG electrode readings to brain activity requires solving a challenging inverse problem. Due to the time series data, the use of $\ell_1$…

机器学习 · 统计学 2025-02-28 Jack Michael Solomon , Rosemary Renaut , Matthias Chung

Brain source imaging is an important method for noninvasively characterizing brain activity using Electroencephalogram (EEG) or Magnetoencephalography (MEG) recordings. Traditional EEG/MEG Source Imaging (ESI) methods usually assume that…

应用统计 · 统计学 2019-06-07 Feng Liu , Li Wang , Yifei Lou , Rencang Li , Patrick Purdon

We study the distribution of brain source from the most advanced brain imaging technique, Magnetoencephalography (MEG), which measures the magnetic fields outside the human head produced by the electrical activity inside the brain. Common…

应用统计 · 统计学 2019-08-13 Zhigang Yao , Zengyan Fan , Masahito Hayashi , William F. Eddy

We study source localization from high dimensional M/EEG data by extending a multiscale method based on Entropic inference devised to increase the spatial resolution of inverse problems. This method is used to construct informative prior…

定量方法 · 定量生物学 2015-02-13 Leonardo S. Barbosa , Nestor Caticha

Electroencephalography (EEG) source imaging aims to reconstruct the spatial distribution of neural activity within the brain from non-invasive scalp measurements. This inverse problem is severely ill-posed due to the low spatial resolution…

数值分析 · 数学 2026-04-08 Joonas Lahtinen , Alexandra Koulouri

The electroencephalography (EEG) source imaging problem is very sensitive to the electrical modelling of the skull of the patient under examination. Unfortunately, the currently available EEG devices and their embedded software do not take…

机器学习 · 计算机科学 2020-02-04 Alexandra Koulouri , Ville Rimpilainen
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