Results 81 to 90 of about 111,880 (318)

Sampling Rate Effects on Resting State fMRI Metrics [PDF]

Frontiers in Neuroscience, 2019
Low image sampling rates used in resting state functional magnetic resonance imaging (rs-fMRI) may cause aliasing of the cardiorespiratory pulsations over the very low frequency (VLF) BOLD signal fluctuations which reflects to functional connectivity (FC). In this study, we examine the effect of sampling rate on currently used rs-fMRI FC metrics. Ultra-
Vesa Kiviniemi, Vesa Kiviniemi, Lauri Raitamaa, Lauri Raitamaa, Ville Raatikainen, Ville Raatikainen, Janne Kananen, Janne Kananen, Vesa Korhonen, Vesa Korhonen, Aleksi Rasila, Aleksi Rasila, Viola Borchardt, Viola Borchardt, Heta Helakari, Heta Helakari, Jussi Kantola, Jussi Kantola, Niko Huotari, Niko Huotari, Timo Tuovinen, Timo Tuovinen   +21 more
openaire   +4 more sources

Ten Key Insights into the Use of Spinal Cord fMRI

Brain Sciences, 2018
A comprehensive review of the literature-to-date on functional magnetic resonance imaging (fMRI) of the spinal cord is presented. Spinal fMRI has been shown, over more than two decades of work, to be a reliable tool for detecting neural activity.
Jocelyn M. Powers, Gabriela Ioachim, Patrick W. Stroman   +2 more
doaj   +1 more source

Disambiguating the role of blood flow and global signal with partial information decomposition [PDF]

, 2019
Global signal (GS) is an ubiquitous construct in resting state functional magnetic resonance imaging (rs-fMRI), associated to nuisance, but containing by definition most of the neuronal signal.
Calhoun, Vince D., Colenbier, Nigel, Marinazzo, Daniele, Poldrack, Russell A., Uddin, Lucina Q., Van de Steen, Frederik   +5 more
core   +2 more sources

Atypical Scene‐Selectivity in the Retrosplenial Complex in Individuals With Autism Spectrum Disorder

Autism Research, EarlyView.
ABSTRACT A small behavioral literature on individuals with autism spectrum disorder (ASD) has shown that they can be impaired when navigating using map‐based strategies (i.e., memory‐guided navigation), but not during visually‐guided navigation. Meanwhile, there is neuroimaging evidence in typically developing (TD) individuals demonstrating that the ...
Andrew S. Persichetti, Taylor L. Li, W. Dale Stevens, Alex Martin, Adrian W. Gilmore   +4 more
wiley   +1 more source

A Generative-Discriminative Basis Learning Framework to Predict Clinical Severity from Resting State Functional MRI Data

, 2018
We propose a matrix factorization technique that decomposes the resting state fMRI (rs-fMRI) correlation matrices for a patient population into a sparse set of representative subnetworks, as modeled by rank one outer products.
A Venkataraman, D Sridharan, H Eavani, KP Murphy, MB Nebel, MD Fox, N Parikh, N Payakachat, NK Batmanghelich   +8 more
core   +1 more source

Visual learning induces changes in resting-state fMRI multivariate pattern of information [PDF]

, 2015
When measured with functional magnetic resonance imaging (fMRI) in the resting state (R-fMRI), spontaneous activity is correlated between brain regions that are anatomically and functionally related. Learning and/or task performance can induce modulation
Baldassarre, Antonello, Corbetta, Maurizio, Gratta, Cosimo Del, Guidotti, Roberto, Romani, Gian Luca   +4 more
core   +2 more sources

Transcranial Direct Current Stimulation of the Temporoparietal Junction in Autism Spectrum Disorder: Results of a Phase‐IIa Randomized, Double‐Blind, Sham‐Controlled Feasibility Study

Autism Research, EarlyView.
ABSTRACT Activation of the temporoparietal junction (TPJ) is reduced in autism spectrum disorder (ASD) during social cognitive tasks. Therefore, anodal transcranial direct current stimulation (tDCS) of the TPJ may enhance social cognitive abilities in autistic individuals. In a multicenter, randomized, sham‐controlled, double‐blind parallel‐group Phase‐
Christina Luckhardt, Magdalena Schütz, Andreas M. Mühlherr, Sara Boxhoorn, Christine Ecker, Hanna Mössinger, Julia Siemann, Fabienne Schlechter, Miguel Castelo‐Branco, Helena C. Pereira, Marianne Latinus, Camille Ricou, Frederique Bonnet‐Brilhault, Ricardo Salvador, Giulio Ruffini, Rafal Nowak, Michael Siniatchkin, Astrid Dempfle, Christine M. Freitag   +18 more
wiley   +1 more source

Resting-state fMRI as a biomarker for Alzheimer's disease? [PDF]

Alzheimer's Research & Therapy, 2012
Previous work indicates that resting-state functional magnetic resonance imaging (fMRI) is sensitive to functional brain changes related to Alzheimer's disease (AD) pathology across the clinical spectrum. Cross-sectional studies have found functional connectivity differences in the brain's default mode network in aging, mild cognitive impairment, and ...
openaire   +3 more sources

Neural electrodes for brain‐computer interface system: From rigid to soft

BMEMat, EarlyView.
Here, we review the development trends of neural electrodes in BCI. This paper highlights the critical role of electrodes in BCI systems, analyzes the limitations of rigid electrodes, and introduces various flexible electrodes. Furthermore, we discuss application scenarios and prospects of BCI electrode technology, aiming to provide valuable references
Dan Yang, Gongwei Tian, Jianhui Chen, Yan Liu, Esha Fatima, Jichuan Qiu, Nik Ahmad Nizam Nik Malek, Dianpeng Qi   +7 more
wiley   +1 more source

Resting State fMRI-Guided Fiber Clustering [PDF]

, 2011
Fiber clustering is a prerequisite step towards tract-based analysis of white mater integrity via diffusion tensor imaging (DTI) in various clinical neuroscience applications. Many methods reported in the literature used geometric or anatomic information for fiber clustering.
Jinglei Lv, Tianming Liu, Bao Ge, Xintao Hu, Lei Guo, Junwei Han, Tuo Zhang   +6 more
openaire   +3 more sources