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Recent studies in neuroscience highlight the significant potential of brain connectivity networks, which are commonly constructed from functional magnetic resonance imaging (fMRI) data for brain disorder diagnosis. Traditional brain…

Estimation of brain functional connectivity from EEG data is of great importance both for medical research and diagnosis. It involves quantifying the conditional dependencies among the activity of different brain areas from the time-varying…

Methodology · Statistics 2026-01-06 Alessia Mapelli , Laura Carini , Francesca Ieva , Sara Sommariva

Understanding how the brain's complex nonlinear dynamics give rise to cognitive function remains a central challenge in neuroscience. While brain functional dynamics exhibits scale-free and multifractal properties across temporal scales,…

Neurons and Cognition · Quantitative Biology 2025-06-18 Sangyoon Bae , Junbeom Kwon , Shinjae Yoo , Jiook Cha

Identifying unusual brain activity is a crucial task in neuroscience research, as it aids in the early detection of brain disorders. It is common to represent brain networks as graphs, and researchers have developed various graph-based…

Machine Learning · Computer Science 2024-10-04 Sadaf Sadeghian , Xiaoxiao Li , Margo Seltzer

An important step of modeling spatially-referenced data is appropriately specifying the second order properties of the random field. A scientist developing a model for spatial data has a number of options regarding the nature of the…

Computation · Statistics 2015-11-17 Zachary D. Weller

Functional connectivity (FC) refers to the investigation of interactions between brain regions to understand integration of neural activity in several regions. FC is often estimated using functional magnetic resonance images (fMRI). There…

Applications · Statistics 2023-01-24 Nathan Tung , Jerome Sanes , Eli Upfal , Ani Eloyan

The development of noninvasive brain imaging such as resting-state functional magnetic resonance imaging (rs-fMRI) and its combination with AI algorithm provides a promising solution for the early diagnosis of Autism spectrum disorder…

Image and Video Processing · Electrical Eng. & Systems 2022-04-11 Fangyu Zhang , Yanjie Wei , Jin Liu , Yanlin Wang , Wenhui Xi , Yi Pan

Understanding the dynamic nature of brain connectivity is critical for elucidating neural processing, behavior, and brain disorders. Traditional approaches such as sliding-window correlation (SWC) characterize time-varying undirected…

Neurons and Cognition · Quantitative Biology 2026-02-19 Nan Xu , Xiaodi Zhang , Wen-Ju Pan , Jeremy L. Smith , Eric H. Schumacher , Jason W. Allen , Vince D. Calhoun , Shella D. Keilholz

Deep learning models based on resting-state functional magnetic resonance imaging (rs-fMRI) have been widely used to diagnose brain diseases, particularly autism spectrum disorder (ASD). Existing studies have leveraged the functional…

Machine Learning · Computer Science 2023-10-06 Wonsik Jung , Eunjin Jeon , Eunsong Kang , Heung-Il Suk

Functional alterations in the relevant neural circuits occur from drug addiction over a certain period. And these significant alterations are also revealed by analyzing fMRI. However, because of fMRI's high dimensionality and poor…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Changwei Gong , Changhong Jing , Junren Pan , Shuqiang Wang

Major depressive disorder (MDD) is a prevalent mental disorder associated with complex neurobiological changes that cannot be fully captured using a single imaging modality. The use of multimodal magnetic resonance imaging (MRI) provides a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Nojod M. Alotaibi , Areej M. Alhothali

Significant progress has been made using fMRI to characterize the brain changes that occur in ASD, a complex neuro-developmental disorder. However, due to the high dimensionality and low signal-to-noise ratio of fMRI, embedding informative…

Image and Video Processing · Electrical Eng. & Systems 2019-08-15 Xiaoxiao Li , Nicha C. Dvornek , Juntang Zhuang , Pamela Ventola , James Duncan

Resting-state fMRI has become a valuable tool for classifying brain disorders and constructing brain functional connectivity networks by tracking BOLD signals across brain regions. However, existing mod els largely neglect the…

Machine Learning · Computer Science 2025-11-18 Yue Xun , Jiaxing Xu , Wenbo Gao , Chen Yang , Shujun Wang

Neural field models represent neuronal communication on a population level via synaptic weight functions. Using voltage sensitive dye (VSD) imaging it is possible to obtain measurements of neural fields with a relatively high spatial and…

Methodology · Statistics 2020-07-29 Adam Lund , Niels Richard Hansen

We propose a model for diagnosing Autism spectrum disorder (ASD) using multimodal magnetic resonance imaging (MRI) data. Our approach integrates brain connectivity data from diffusion tensor imaging (DTI) and functional MRI (fMRI),…

Neurons and Cognition · Quantitative Biology 2024-10-10 Lu Wei , Yi Huang , Guosheng Yin , Fode Zhang , Manxue Zhang , Bin Liu

Depression is a major cause of global mental illness and significantly influences suicide rates. Timely and accurate diagnosis is essential for effective intervention. Electroencephalography (EEG) provides a non-invasive and accessible…

Signal Processing · Electrical Eng. & Systems 2025-11-11 Soujanya Hazra , Sanjay Ghosh

Existing multimodal stress/pain recognition approaches generally extract features from different modalities independently and thus ignore cross-modality correlations. This paper proposes a novel geometric framework for multimodal…

Machine Learning · Computer Science 2022-07-20 Yujin WU , Mohamed Daoudi , Ali Amad , Laurent Sparrow , Fabien D'Hondt

Machine learning provides a valuable tool for analyzing high-dimensional functional neuroimaging data, and is proving effective in predicting various neurological conditions, psychiatric disorders, and cognitive patterns. In functional…

Machine Learning · Computer Science 2024-11-25 Anwar Said , Roza G. Bayrak , Tyler Derr , Mudassir Shabbir , Daniel Moyer , Catie Chang , Xenofon Koutsoukos

In an era of unprecedented deluge of (mostly unstructured) data, graphs are proving more and more useful, across the sciences, as a flexible abstraction to capture complex relationships between complex objects. One of the main challenges…

Disordered Systems and Neural Networks · Physics 2016-10-17 Alaa Saade

Discriminating between Parkinson's Disease (PD) and Progressive Supranuclear Palsy (PSP) is difficult due to overlapping symptoms, especially early on. Saccades (rapid conjugate eye movements between fixation points) are affected by both…

Quantitative Methods · Quantitative Biology 2024-07-25 Salil B Patel , Oliver B Bredemeyer , James J FitzGerald , Chrystalina A Antoniades