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Body sway responses to pseudorandom support surface translations of vestibular loss subjects resemble those of vestibular able subjects

Authors: V. Lippi, L. AsslÀnder, E. Akcay, T. Mergner

arXiv

Body sway responses evoked by a horizontal acceleration of a level and firm support surface are particular in that the vestibular information on body-space angle BS resembles the proprioceptive inform...

mental health psychology open access

Statistical Analysis of Dynamic Functional Brain Networks in Twins

Authors: Moo K. Chung, Shih-Gu Huang, Tananun Songdechakraiwut, Ian C. Carroll, H. Hill Goldsmith

arXiv

Recent studies have shown that functional brain brainwork is dynamic even during rest. A common approach to modeling the brain network in whole brain resting-state fMRI is to compute the correlation b...

mental health psychology open access

A Network Analysis Approach to fMRI Condition-Specific Functional Connectivity

Authors: Svetlana V. Shinkareva, Vladimir Gudkov, Jing Wang

arXiv

In this work we focus on examination and comparison of whole-brain functional connectivity patterns measured with fMRI across experimental conditions. Direct examination and comparison of condition-sp...

mental health psychology open access

Adaptation Reduces Variability of the Neuronal Population Code

Authors: Farzad Farkhooi, Eilif Muller, Martin P. Nawrot

arXiv

Sequences of events in noise-driven excitable systems with slow variables often show serial correlations among their intervals of events. Here, we employ a master equation for general non-renewal proc...

mental health psychology open access

Time and category information in pattern-based codes

Authors: Hugo Gabriel Eyherabide, Inés Samengo

arXiv

Sensory stimuli are usually composed of different features (the what) appearing at irregular times (the when). Neural responses often use spike patterns to represent sensory information. The what is h...

mental health psychology open access

Bayesian Bi-clustering of Neural Spiking Activity with Latent Structures

Authors: Ganchao Wei

arXiv

Modern neural recording techniques allow neuroscientists to obtain spiking activity of multiple neurons from different brain regions over long time periods, which requires new statistical methods to b...

mental health psychology open access

Temporal-lobe Epilepsy: Harmonic and Anharmonic Periodicity in Microeletrode Voltage

Authors: Francois A. Marshall

arXiv

Temporal-lobe epilepsy in humans is often associated with widespread, synchronized neuron firing that co-occurs with traveling waves in local field potential. These traveling waves generate stochastic...

mental health psychology open access

Application of Time-Aware PC algorithm to compute Causal Functional Connectivity in Alzheimer's Disease from fMRI data

Authors: Rahul Biswas, SuryaNarayana Sripada

arXiv

Functional Connectivity between brain regions is known to be altered in Alzheimer's disease, and promises to be a biomarker for early diagnosis of the disease. While several approaches for functional...

mental health psychology open access

Optimizing the quantity/quality trade-off in connectome inference

Authors: Carey E. Priebe, Joshua T. Vogelstein, Davi Bock

arXiv

We demonstrate a meaningful prospective power analysis for an (admittedly idealized) illustrative connectome inference task. Modeling neurons as vertices and synapses as edges in a simple random graph...

mental health psychology open access

A Bayesian approach for inferring neuronal connectivity from calcium fluorescent imaging data

Authors: Yuriy Mishchencko, Joshua T. Vogelstein, Liam Paninski

arXiv

Deducing the structure of neural circuits is one of the central problems of modern neuroscience. Recently-introduced calcium fluorescent imaging methods permit experimentalists to observe network acti...

mental health psychology open access

A Point-process Response Model for Spike Trains from Single Neurons in Neural Circuits under Optogenetic Stimulation

Authors: Xi Luo, Steven Gee, Vikaas S. Sohal, Dylan S. Small

arXiv

Optogenetics is a new tool to study neuronal circuits that have been genetically modified to allow stimulation by flashes of light. We study recordings from single neurons within neural circuits under...

mental health psychology open access

Correlation Across Environments Encoded by Hippocampal Place Cells

Authors: Bhav Jain, Sean Elliott

arXiv

The hippocampus is often attributed to episodic memory formation and storage in the mammalian brain; in particular, Alme et al. showed that hippocampal area CA3 forms statistically independent represe...

mental health psychology open access

Multivariate functional group sparse regression: functional predictor selection

Authors: Ali Mahzarnia, Jun Song

arXiv

In this paper, we propose methods for functional predictor selection and the estimation of smooth functional coefficients simultaneously in a scalar-on-function regression problem under high-dimension...

mental health psychology open access

Critical elements for connectivity analysis of brain networks

Authors: Jean Faber, Priscila C. Antoneli, Guillem Via, Noemi S. AraĂșjo, Daniel J. L. L. Pinheiro, Esper Cavalheiro

arXiv

In recent years, new and important perspectives were introduced in the field of neuroimaging with the emergence of the connectionist approach. In this new context, it is important to know not only whi...

mental health psychology open access

ABCD Neurocognitive Prediction Challenge 2019: Predicting individual fluid intelligence scores from structural MRI using probabilistic segmentation and kernel ridge regression

Authors: Agoston Mihalik, Mikael Brudfors, Maria Robu, Fabio S. Ferreira, Hongxiang Lin, Anita Rau, Tong Wu, Stefano B. Blumberg, Baris Kanber, Maira Tariq, Maria Del Mar Estarellas Garcia, Cemre Zor, Daniil I. Nikitichev, Janaina Mourao-Miranda, Neil P. Oxtoby

arXiv

We applied several regression and deep learning methods to predict fluid intelligence scores from T1-weighted MRI scans as part of the ABCD Neurocognitive Prediction Challenge (ABCD-NP-Challenge) 2019...

mental health psychology open access