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We propose a novel denoising framework for task functional Magnetic Resonance Imaging (tfMRI) data to delineate the high-resolution spatial pattern of the brain functional connectivity via dictionary learning and sparse coding (DLSC). In…

Machine Learning · Computer Science 2017-07-24 Seongah Jeong , Xiang Li , Jiarui Yang , Quanzheng Li , Vahid Tarokh

In recent years, Electroencephalographic analysis has gained prominence in stress research when combined with AI and Machine Learning models for validation. In this study, a lightweight dynamic brain connectivity framework based on Time…

Neurons and Cognition · Quantitative Biology 2025-11-11 Sayantan Acharya , Abbas Khosravi , Douglas Creighton , Roohallah Alizadehsani , U. Rajendra Acharya

Advances in data analysis and machine learning have revolutionized the study of brain signatures using fMRI, enabling non-invasive exploration of cognition and behavior through individual neural patterns. Functional connectivity (FC), which…

Image and Video Processing · Electrical Eng. & Systems 2025-10-31 Yashaswini , Sanjay Ghosh

Functional Connectivity (FC) matrices measure the regional interactions in the brain and have been widely used in neurological brain disease classification. However, a FC matrix is neither a natural image which contains shape and texture…

Medical Physics · Physics 2020-01-10 Xiaodan Xing , Qingfeng Li , Hao Wei , Minqing Zhang , Yiqiang Zhan , Xiang Sean Zhou , Zhong Xue , Feng Shi

A brain-computer interface (BCI) provides a direct communication pathway between user and external devices. Electroencephalogram (EEG) motor imagery (MI) paradigm is widely used in non-invasive BCI to obtain encoded signals contained user…

Signal Processing · Electrical Eng. & Systems 2020-02-05 Byeong-Hoo Lee , Ji-Hoon Jeong , Kyung-Hwan Shim , Seong-Whan Lee

We exploit altered patterns in brain functional connectivity as features for automatic discriminative analysis of neuropsychiatric patients. Deep learning methods have been introduced to functional network classification only very recently…

Machine Learning · Computer Science 2020-04-27 Chun-Ren Phang , Chee-Ming Ting , Fuad Noman , Hernando Ombao

Cross-subject motor imagery (CS-MI) classification in brain-computer interfaces (BCIs) is a challenging task due to the significant variability in Electroencephalography (EEG) patterns across different individuals. This variability often…

Machine Learning · Computer Science 2025-07-04 Ahmed G. Habashi , Ahmed M. Azab , Seif Eldawlatly , Gamal M. Aly

Motor impairments, frequently caused by neurological incidents like strokes or traumatic brain injuries, present substantial obstacles in rehabilitation therapy. This research aims to elevate the field by optimizing motor imagery…

Machine Learning · Computer Science 2023-11-23 Soham Bafana

Neuroimaging-based prediction methods for intelligence and cognitive abilities have seen a rapid development in literature. Among different neuroimaging modalities, prediction based on functional connectivity (FC) has shown great promise.…

Neurons and Cognition · Quantitative Biology 2023-07-20 Yang Li , Xin Ma , Raj Sunderraman , Shihao Ji , Suprateek Kundu

The available evidence suggests that dynamic functional connectivity (dFC) can capture time-varying abnormalities in brain activity in resting-state cerebral functional magnetic resonance imaging (rs-fMRI) data and has a natural advantage…

Neurons and Cognition · Quantitative Biology 2023-09-13 Cheng Zhu , Ying Tan , Shuqi Yang , Jiaqing Miao , Jiayi Zhu , Huan Huang , Dezhong Yao , Cheng Luo

Brain-computer interfaces (BCIs) use brain signals such as electroencephalography to reflect user intention and enable two-way communication between computers and users. BCI technology has recently received much attention in healthcare…

Human-Computer Interaction · Computer Science 2024-01-31 Byoung-Hee Kwon , Ji-Hoon Jeong , Seong-Whan Lee

Dynamic functional connectivity analysis provides valuable information for understanding brain functional activity underlying different cognitive processes. Besides sliding window based approaches, a variety of methods have been developed…

Computer Vision and Pattern Recognition · Computer Science 2018-09-18 Hongming Li , Yong Fan

Dynamic functional connectivity (dFC) derived from resting-state functional magnetic resonance imaging (fMRI) has been extensively utilized in brain science research. The sliding window correlation (SWC) method is a widely used approach for…

Neurons and Cognition · Quantitative Biology 2026-03-27 Jinlong Hu , Jiatong Huang , Zijian Cai

There is a correlation between adjacent channels of electroencephalogram (EEG), and how to represent this correlation is an issue that is currently being explored. In addition, due to inter-individual differences in EEG signals, this…

Signal Processing · Electrical Eng. & Systems 2023-09-22 Jie Jiao , Meiyan Xu , Qingqing Chen , Hefan Zhou , Wangliang Zhou

This study introduces a pioneering approach in brain-computer interface (BCI) technology, featuring our novel concept of high-level visual imagery for non-invasive electroencephalography (EEG)-based communication. High-level visual imagery,…

Human-Computer Interaction · Computer Science 2025-11-03 Byoung-Hee Kwon , Minji Lee , Seong-Whan Lee

Dynamic functional connectivity (dFC) is ubiquitously observed in the brain, but why functional networks should remain dynamic even at rest is unclear. We asked whether temporal reconfiguration becomes advantageous when keeping a functional…

Biological Physics · Physics 2026-04-14 Simachew Abebe Mengiste , Demian Battaglia

Purpose: A profound education of novice surgeons is crucial to ensure that surgical interventions are effective and safe. One important aspect is the teaching of technical skills for minimally invasive or robot-assisted procedures. This…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Isabel Funke , Sören Torge Mees , Jürgen Weitz , Stefanie Speidel

Recent neuroimaging studies have highlighted the importance of network-centric brain analysis, particularly with functional magnetic resonance imaging. The emergence of Deep Neural Networks has fostered a substantial interest in predicting…

Neurons and Cognition · Quantitative Biology 2023-09-06 Xuan Kan , Antonio Aodong Chen Gu , Hejie Cui , Ying Guo , Carl Yang

Convolutional Neural Networks (CNNs) are used to evaluate accelerometer and microphone data for bearing and induction motor diagnosis. A Long Short-Term Memory (LSTM) recurrent neural network is used to combine sensor information…

Machine Learning · Computer Science 2025-06-16 Mert Sehri , Merve Ertagrin , Ozal Yildirim , Ahmet Orhan , Patrick Dumond

Dynamic networks have been increasingly used to characterize brain connectivity that varies during resting and task states. In such characterizations, a connectivity network is typically measured at each time point for a subject over a…

Methodology · Statistics 2023-03-23 Maoyu Zhang , Biao Cai , Wenlin Dai , Dehan Kong , Hongyu Zhao , Jingfei Zhang