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Electroencephalography (EEG) is an non-invasive method to record the electrical activity of the brain. The EEG signals are low bandwidth and recorded from multiple electrodes simultaneously in a time synchronized manner. Typical EEG signal…

Signal Processing · Electrical Eng. & Systems 2024-12-24 Sunil Kumar Kopparapu

We consider the problem of estimating the difference between two functional undirected graphical models with shared structures. In many applications, data are naturally regarded as high-dimensional random function vectors rather than…

Machine Learning · Statistics 2019-11-19 Boxin Zhao , Y. Samuel Wang , Mladen Kolar

Non-invasive Brain-Computer Interface (BCI) systems based on electroencephalography (EEG) signals suffer from multiple obstacles to reach a wide adoption in clinical settings for communication or rehabilitation. Among these challenges, the…

Human-Computer Interaction · Computer Science 2025-12-19 Hubert Cecotti , Rashmi Mrugank Shah , Raksha Jagadish , Toshihisa Tanaka

Electroencephalography (EEG) is a critical, non-invasive method to monitor electrical brain activity. EEGs can span anywhere from a couple seconds to multiple hours, posing a major hurdle for existing deep learning methods due to two major…

Artificial Intelligence · Computer Science 2026-05-28 Abhilash Durgam , Nyle Siddiqui , Jeffrey A. Chan-Santiago , Qiushi Fu , Elakkat D. Gireesh , Mubarak Shah

Electroencephalography (EEG) signals reflect activities on certain brain areas. Effective classification of time-varying EEG signals is still challenging. First, EEG signal processing and feature engineering are time-consuming and highly…

Human-Computer Interaction · Computer Science 2019-08-27 Xiang Zhang , Lina Yao , Xianzhi Wang , Wenjie Zhang , Shuai Zhang , Yunhao Liu

Understanding and decoding brain activity from electroencephalography (EEG) signals is a fundamental challenge in neuroscience and AI, with applications in cognition, emotion recognition, diagnosis, and brain-computer interfaces. While…

Human-Computer Interaction · Computer Science 2025-07-01 Yuchen Zhou , Jiamin Wu , Zichen Ren , Zhouheng Yao , Weiheng Lu , Kunyu Peng , Qihao Zheng , Chunfeng Song , Wanli Ouyang , Chao Gou

Parkinsons disease (PD) alters cortical neural dynamics, yet reliable non-invasive electrophysiological biomarkers remain elusive. This study examined whether interpretable EEG features capturing complementary aspects of neural dynamics can…

Neurons and Cognition · Quantitative Biology 2026-04-14 Antonios G. Dougalis

The human brain is constantly processing and integrating information in order to make decisions and interact with the world, for tasks from recognizing a familiar face to playing a game of tennis. These complex cognitive processes require…

Neurons and Cognition · Quantitative Biology 2019-05-14 Thomas A. Carlson , Tijl Grootswagers , Amanda K. Robinson

Simultaneous electrocardiography (ECG) and phonocardiogram (PCG) provide a comprehensive, multimodal perspective on cardiac function by capturing the heart's electrical and mechanical activities, respectively. However, the distinct and…

Machine Learning · Computer Science 2025-06-13 Sajjad Karimi , Amit J. Shah , Gari D. Clifford , Reza Sameni

We study the synchronization between left and right hemisphere rat EEG channels by using various synchronization measures, namely non-linear interdependences, phase-synchronizations, mutual information, cross-correlation and the coherence…

Chaotic Dynamics · Physics 2016-09-08 R. Quian Quiroga , A. Kraskov , T. Kreuz , P. Grassberger

The incidence of Alzheimer's disease (AD) and other forms of dementia is increasing in most western countries. For a precise and early diagnosis, several examination modalities exist, among them single-photon emission computed tomography…

We investigate the relationship between the extensor electromyogram (EMG) and tremor time series in physiological hand tremor by cross-spectral analysis. Special attention is directed to the phase spectrum and the effects of observational…

chao-dyn · Physics 2007-05-23 J. Timmer , M. Lauk , W. Pfleger , G. Deuschl

The human brain remains continuously active, whether an individual is working or at rest. Mental activity is a daily process, and if the brain becomes excessively active, known as overload, it can adversely affect human health. Recently,…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Hong-Hai Nguyen , Ngumimi Karen Iyortsuun , Seungwon Kim , Hyung-Jeong Yang , Soo-Hyung Kim

Most brain disorders including Alzheimer's disease (AD) are related to alterations in the normal brain network organization and function. Exploring these network alterations using non-invasive and easy to use technique is a topic of great…

Neurons and Cognition · Quantitative Biology 2017-06-14 Aya Kabbara , Mahmoud Hassan , Mohamad Khalil , Wassim El Falou , Hassan Eid

During the last few years, there has been growing interest in the effects induced by individual variability on activation patterns and brain connectivity. The practical implications of individual variability is of basic relevance for both…

Signal Processing · Electrical Eng. & Systems 2020-01-29 Matteo Demuru , Matteo Fraschini

To understand Working of Human Brain measurements related to the brain function are required. These measurements should be possibly non-invasive. Brain should be disturbed as less as possible during the measurement. Integration of various…

Emerging Technologies · Computer Science 2015-06-16 Revati Shriram , M. Sundhararajan , Nivedita Daimiwal

Neural activity patterns related to behavior occur at many scales in time and space from the atomic and molecular to the whole brain. Here we explore the feasibility of interpreting neurophysiological data in the context of many-body…

Other Quantitative Biology · Quantitative Biology 2009-11-11 Walter J. Freeman , Giuseppe Vitiello

Recent analyses combining advanced theoretical techniques and high-quality data from thousands of simultaneously recorded neurons provide strong support for the hypothesis that neural dynamics operate near the edge of instability across…

Neurons and Cognition · Quantitative Biology 2024-03-25 Rubén Calvo , Carles Martorell , Guillermo B. Morales , Serena Di Santo , Miguel A. Muñoz

Traditionally, the neuronal dynamics underlying electroencephalograms (EEG) have been understood as arising from \textit{rhythmic oscillators with varying degrees of synchronization}. This dominant metaphor employs frequency domain EEG…

Neurons and Cognition · Quantitative Biology 2023-03-15 Javier Díaz , Hiroyasu Ando , GoEun Han , Olga Malyshevskaya , Xifang Hayashi , Juan-Carlos Letelier , Masashi Yanagisawa , Kaspar E. Vogt

Motor-imagery (MI) EEG can be classified using supervised machine learning techniques such as Linear Discriminant Analysis applied to features extracted by Common Spatial Patterns. Performance of these models varies widely, possibly due to…

Signal Processing · Electrical Eng. & Systems 2026-05-21 Matthew A. McCartney , Liisa A. Kivioja , Sonal S. Baberwal , Shirley Coyle