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Sequential Detection of Regime Changes in Neural Data

Authors: Taposh Banerjee, Stephen Allsop, Kay M. Tye, Demba Ba, Vahid Tarokh

arXiv

The problem of detecting changes in firing patterns in neural data is studied. The problem is formulated as a quickest change detection problem. Important algorithms from the literature are reviewed....

mental health psychology open access

Night sleep duration trajectories and associated factors among preschool children from the EDEN cohort

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

arXiv

Objective. Sleep duration may vary inter-individually and intra-individually over time. We aimed at both identifying night-sleep duration (NSD) trajectories among preschoolers and studying associated...

mental health psychology open access

Estimation and Inference for High-dimensional Multi-response Growth Curve Model

Authors: Xin Zhou, Yin Xia, Lexin Li

arXiv

A growth curve model (GCM) aims to characterize how an outcome variable evolves, develops and grows as a function of time, along with other predictors. It provides a particularly useful framework to m...

mental health psychology open access

Network-based Statistics Distinguish Anomic and Broca Aphasia

Authors: Xingpei Zhao, Nicholas Riccardi, Rutvik H. Desai, Dirk-Bart den Ouden, Julius Fridriksson, Yuan Wang

arXiv

Aphasia is a speech-language impairment commonly caused by damage to the left hemisphere. Due to the complexity of speech-language processing, the neural mechanisms that underpin various symptoms betw...

mental health psychology open access

New network models facilitate analysis of biological networks

Authors: Alex Stivala

arXiv

Exponential-family random graph models (ERGMs) are a family of network models originating in social network analysis, which have also been applied to biological networks. Advances in estimation algori...

mental health psychology open access

A Simple Illustration of Interleaved Learning using Kalman Filter for Linear Least Squares

Authors: Majnu John, Yihren Wu

arXiv

Interleaved learning in machine learning algorithms is a biologically inspired training method with promising results. In this short note, we illustrate the interleaving mechanism via a simple statist...

mental health psychology open access

An exponential random graph modeling approach to creating group-based representative whole-brain connectivity networks

Authors: Sean L. Simpson, Malaak N. Moussa, Paul J. Laurienti

arXiv

Group-based brain connectivity networks have great appeal for researchers interested in gaining further insight into complex brain function and how it changes across different mental states and diseas...

mental health psychology open access

Three mechanistically different variability and noise sources in the trial-to-trial fluctuations of responses to brain stimulation

Authors: Ke Ma, Siwei Liu, Mengjie Qin, Stefan Goetz

arXiv

Motor-evoked potentials (MEPs) are among the few directly observable responses to external brain stimulation and serve a variety of applications, often in the form of input-output (IO) curves. Previou...

mental health psychology open access

Graph embeddings of dynamic functional connectivity reveal discriminative patterns of task engagement in HCP data

Authors: Ricardo Pio Monti, Romy Lorenz, Peter Hellyer, Robert Leech, Christoforos Anagnostopoulos, Giovanni Montana

arXiv

There is increasing evidence to suggest functional connectivity networks are non-stationary. This has lead to the development of novel methodologies with which to accurately estimate time-varying func...

mental health psychology open access

Sparsity Enables Estimation of both Subcortical and Cortical Activity from MEG and EEG

Authors: Pavitra Krishnaswamy, Gabriel Obregon-Henao, Jyrki Ahveninen, Sheraz Khan, Behtash Babadi, Juan Eugenio Iglesias, Matti S. Hamalainen, Patrick L. Purdon

arXiv

Subcortical structures play a critical role in brain function. However, options for assessing electrophysiological activity in these structures are limited. Electromagnetic fields generated by neurona...

mental health psychology open access

Using causal models to distinguish between neurogenesis-dependent and -independent effects on behaviour

Authors: Stanley E. Lazic

arXiv

There has been a substantial amount of research on the relationship between hippocampal neurogenesis and behaviour over the past fifteen years, but the causal role that new neurons have on cognitive a...

mental health psychology open access

Critical comments on EEG sensor space dynamical connectivity analysis

Authors: Frederik van de Steen, Luca Faes, Esin Karahan, Jitkomut Songsiri, Pedro Antonio Valdes Sosa, Daniele Marinazzo

arXiv

Many different analysis techniques have been developed and applied to EEG recordings that allow one to investigate how different brain areas interact. One particular class of methods, based on the lin...

mental health psychology open access

NEURAL: quantitative features for newborn EEG using Matlab

Authors: John M. O' Toole, Geraldine B. Boylan

arXiv

Background: For newborn infants in critical care, continuous monitoring of brain function can help identify infants at-risk of brain injury. Quantitative features allow a consistent and reproducible a...

mental health psychology open access

Quantifying the strength of structural connectivity underlying functional brain networks

Authors: Phebe Brenne Kemmer, F. DuBois Bowman, Helen Mayberg, Ying Guo

arXiv

In recent years, there has been strong interest in neuroscience studies to investigate brain organization through networks of brain regions that demonstrate strong functional connectivity (FC). These...

mental health psychology open access

Bayesian Odds-Ratio Filters: A Template-Based Method for Online Detection of P300 Evoked Responses

Authors: Asim M. Mubeen, Kevin H. Knuth

arXiv

Template-based signal detection most often relies on computing a correlation, or a dot product, between an incoming data stream and a signal template. While such a correlation results in an ongoing es...

mental health psychology open access