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Showing 15 of 20167 papers

On the geometric structure of fMRI searchlight-based information maps

Authors: Shivakumar Viswanathan, Matthew Cieslak, Scott T. Grafton

arXiv

Information mapping is a popular application of Multivoxel Pattern Analysis (MVPA) to fMRI. Information maps are constructed using the so called searchlight method, where the spherical multivoxel neig...

mental health psychology open access

Signal detection in extracellular neural ensemble recordings using higher criticism

Authors: Farzad Fathizadeh, Ekaterina Mitricheva, Rui Kimura, Nikos Logothetis, Hamid Reza Noori

arXiv

Information processing in the brain is conducted by a concerted action of multiple neural populations. Gaining insights in the organization and dynamics of such populations can best be studied with br...

mental health psychology open access

Association of night-waking and inattention/hyperactivity symptoms trajectories in preschool-aged children

Authors: Eve Reynaud, Anne Forhan, Barbara Heude, Marie-Aline Charles, Sabine Plancoulaine

arXiv

Objective: To study the longitudinal associations between inattention/hyperactivity symptoms and night-waking in preschool-years, in light of their joint evolution.Study design: Within the French birt...

mental health psychology open access

Functional Brain Networks Discovery Using Dictionary Learning with Correlated Sparsity

Authors: Mohsen Joneidi

arXiv

Analysis of data from functional magnetic resonance imaging (fMRI) results in constructing functional brain networks. Principal component analysis (PCA) and independent component analysis (ICA) are wi...

mental health psychology open access

Double Generalized Linear Model Reveals Those with High Intelligence are More Similar in Cortical Thickness

Authors: Qi Zhao, Lingli Zhang, Chun Shen, Jie Zhang, Jianfeng Feng

arXiv

Most studies indicate that intelligence (g) is positively correlated with cortical thickness. However, the interindividual variability of cortical thickness has not been taken into account. In this st...

mental health psychology open access

Machine learning approaches in Detecting the Depression from Resting-state Electroencephalogram (EEG): A Review Study

Authors: Milena Cukic Radenkovic

arXiv

In this paper, we aimed at reviewing several different approaches present today in the search for more accurate diagnostic and treatment management in mental healthcare. Our focus is on mood disorders...

mental health psychology open access

Meta-analysis of Gene Expression in Neurodegenerative Diseases Reveals Patterns in GABA Synthesis and Heat Stress Pathways

Authors: Abdulahad Bayraktar, Tugba Onal-Suzek, Baris Ethem Suzek, Omur Baysal

arXiv

Neurodegenerative diseases are characterized as the progressive loss of neural cells, e.g. neurons, glial cells. Ageing, monogenic variations, viral infections, and many other factors are determined a...

mental health psychology open access

A state-space model for dynamic functional connectivity

Authors: Sourish Chakravarty, Zachary D. Threlkeld, Yelena G. Bodien, Brian L. Edlow, Emery N. Brown

arXiv

Dynamic functional connectivity (DFC) analysis involves measuring correlated neural activity over time across multiple brain regions. Significant regional correlations among neural signals, such as th...

mental health psychology open access

Assessing the Significance of Directed and Multivariate Measures of Linear Dependence Between Time Series

Authors: Oliver M. Cliff, Leonardo Novelli, Ben D. Fulcher, James M. Shine, Joseph T. Lizier

arXiv

Inferring linear dependence between time series is central to our understanding of natural and artificial systems. Unfortunately, the hypothesis tests that are used to determine statistically signific...

mental health psychology open access

Causality in cognitive neuroscience: concepts, challenges, and distributional robustness

Authors: Sebastian Weichwald, Jonas Peters

arXiv

While probabilistic models describe the dependence structure between observed variables, causal models go one step further: they predict, for example, how cognitive functions are affected by external...

mental health psychology open access

To Deconvolve, or Not to Deconvolve: Inferences of Neuronal Activities using Calcium Imaging Data

Authors: Tong Shen, Gyorgy Lur, Xiangmin Xu, Zhaoxia Yu

arXiv

With the increasing popularity of calcium imaging data in neuroscience research, methods for analyzing calcium trace data are critical to address various questions. The observed calcium traces are eit...

mental health psychology open access

Metrics for Graph Comparison: A Practitioner's Guide

Authors: Peter Wills, Francois G. Meyer

arXiv

Comparison of graph structure is a ubiquitous task in data analysis and machine learning, with diverse applications in fields such as neuroscience, cyber security, social network analysis, and bioinfo...

mental health psychology open access

Incorporating structured assumptions with probabilistic graphical models in fMRI data analysis

Authors: Ming Bo Cai, Michael Shvartsman, Anqi Wu, Hejia Zhang, Xia Zhu

arXiv

With the wide adoption of functional magnetic resonance imaging (fMRI) by cognitive neuroscience researchers, large volumes of brain imaging data have been accumulated in recent years. Aggregating the...

mental health psychology open access

Interpretable brain age prediction using linear latent variable models of functional connectivity

Authors: Ricardo Pio Monti, Alex Gibberd, Sandipan Roy, Matt Nunes, Romy Lorenz, Robert Leech, Takeshi Ogawa, Motoaki Kawanabe, Aapo Hyvarinen

arXiv

Neuroimaging-driven prediction of brain age, defined as the predicted biological age of a subject using only brain imaging data, is an exciting avenue of research. In this work we seek to build models...

mental health psychology open access

The iterative reweighted Mixed-Norm Estimate for spatio-temporal MEG/EEG source reconstruction

Authors: Daniel Strohmeier, Yousra Bekhti, Jens Haueisen, Alexandre Gramfort

arXiv

Source imaging based on magnetoencephalography (MEG) and electroencephalography (EEG) allows for the non-invasive analysis of brain activity with high temporal and good spatial resolution. As the bioe...

mental health psychology open access