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Evaluating the effects of systemic low frequency oscillations measured in the periphery on the independent component analysis results of resting state networks
2013
NeuroImage
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and interpretation of connectivity in these regions of the brain Keywords Resting state networks; independent component analysis; low frequency oscillation; near infrared spectroscopy; BOTD fMRI; physiological ...
This result demonstrates that systemic, low frequency oscillations in hemodynamic properties overlay the timecourses of many spatial patterns identified in ICA analyses, which complicates the detection ...
Scott Lukas for meaningful discussions about this work, which was supported by the National Institutes of Health, Grants T32 DA015036 (YT), K25 DA031769 (YT), R21 DA027877 (BdeBF), K01 DA023659 (SCL). ...
doi:10.1016/j.neuroimage.2013.03.019
pmid:23523805
pmcid:PMC3652630
fatcat:gkei7jrglvcarotjfhndgz3wfq
Low Frequency Systemic Hemodynamic "Noise" in Resting State BOLD fMRI: Characteristics, Causes, Implications, Mitigation Strategies, and Applications
2019
Frontiers in Neuroscience
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However, significant low frequency physiological oscillation (∼0.01-0.15 Hz) remains in the signal. ...
Finally, we will discuss some of the uses to which the moving systemic low frequency oscillation can be put if we consider it a "signal" carrying information, rather than simply "noise" complicating the ...
FUNDING This research was supported by the National Institute of Neurological Disorders and Stroke, grant R01NS097512, and NIDA, Grant K25 DA031769. ...
doi:10.3389/fnins.2019.00787
pmid:31474815
pmcid:PMC6702789
fatcat:rup7ygtqava6los7hy2vwyaxaa
Correcting for Blood Arrival Time in Global Mean Regression Enhances Functional Connectivity Analysis of Resting State fMRI-BOLD Signals
2016
Frontiers in Human Neuroscience
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SE is supported by the BIDEB 2219 program of the Scientific and Technological Research Council of Turkey (TÜBITAK). We thank Dr. Scott Lukas for his support on the project and helpful discussions. ...
ACKNOWLEDGMENTS This work was supported by the National Institutes of Health, Grants K25 DA031769(YT), and R21 DA032746 (BdeBF). ...
FIGURE 3 | 3 FIGURE 3 | Low frequency systemic oscillations measured from the periphery with NIRS show a close resemblance to the global signal from fMRI. ...
doi:10.3389/fnhum.2016.00311
pmid:27445751
pmcid:PMC4923135
fatcat:3r5johmx7zez5nixmjsr4nxjpm
Effects of Systemic Physiology on Mapping Resting-State Networks Using Functional Near-Infrared Spectroscopy
2022
Frontiers in Neuroscience
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physiology on fNIRS-based resting-state networks. ...
In the present work, we hypothesized that additional measurements with short channels, heart rate, mean arterial pressure, and end-tidal CO2 could provide a better understanding of the effects of systemic ...
DISCUSSION The purpose of the current study was to evaluate the effects of systemic physiological variables on fNIRS rsFC by acquiring resting-state data with SCs and additional physiological measurements ...
doi:10.3389/fnins.2022.803297
pmid:35350556
pmcid:PMC8957952
fatcat:5tsp6h2am5ggbnvodk33xdsz6e
Frequency-specific meso-scale structure of spontaneous oscillatory activity in the human brain
[article]
2020
bioRxiv
pre-print
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Despite meso-scale modalities were mixed over the entire spectrum, we found a selective increase of disassortativity in the delta/theta bands, and of core-peripheriness in the low/high gamma bands. ...
We analyzed the resting state activity of healthy participants with source-localized high-density electroencephalography signals. ...
In addition, the medial areas belonging to limbic system showed a low degree of core-periphery 267 in the higher rhythms. ...
doi:10.1101/2020.05.26.114488
fatcat:4xcpwb2sd5axffaca3fi3odpqi
Effects of spinal cord stimulation on heart rate variability in patients with Failed Back Surgery Syndrome
2019
PLoS ONE
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Building on the recent finding that chronic pain patients with impaired functioning of the descending nociceptive inhibitory system (DNIS) present lower resting heart rate variability (HRV), this study ...
aims to investigate the impact of Spinal Cord Stimulation (SCS) on HRV in patients with Failed Back Surgery Syndrome (FBSS). ...
Acknowledgments The authors thank Ine Van de Weghe, Stefano Aguirre, Rosalia van Zundert, Kenneth De Becker and Kim Voogt for their help with the data collection. ...
doi:10.1371/journal.pone.0219076
pmid:31260496
pmcid:PMC6602188
fatcat:mce4sp6q4jffbff2ezg42qessq
Comparison of peripheral near-infrared spectroscopy low-frequency oscillations to other denoising methods in resting state functional MRI with ultrahigh temporal resolution
2016
Magnetic Resonance in Medicine
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It is crucial to effectively identify these nuisance low frequency oscillations (LFOs). ...
Method-A high temporal resolution (TR~0.5 s) fMRI resting state study was conducted with simultaneous physiological measurements to compare LFOs measured directly by near-infrared spectroscopy (NIRS) in ...
Acknowledgements This work was supported by the National Institutes of Health R21 DA027877(BF), R21 DA032746(BF) and K25 DA031769 (YT). ...
doi:10.1002/mrm.26038
pmid:26854203
pmcid:PMC5796666
fatcat:qvbazocivnedropxhil2niejui
Gender-related effects of prefrontal cortex connectivity: a resting-state functional optical tomography study
2014
Biomedical Optics Express
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In this study, the gender effects of functional connectivity, cortical lateralization and significantly differences in the PFC were investigated by using resting-state functional optical tomography (fOT ...
In the result of lateralization, leftward dominant was observed in the male group but bilateral dominance in the female group. ...
Acknowledgments This work was supported in part by the Taiwan National Science Council under Grant Nos. ...
doi:10.1364/boe.5.002503
pmid:25136481
pmcid:PMC4132984
fatcat:35fojjvjhjd3nfwa3sgen6kpei
Distance-dependent inhibition facilitates focality of gamma oscillations in the dentate gyrus
2017
Nature Communications
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Gamma oscillations in neuronal networks are associated with the processing and recall of information. ...
We measured local field potentials in the dentate gyrus of freely moving mice and found that gamma activity occurs in bursts, which are highly heterogeneous in their spatial extensions, ranging from focal ...
All data including codes for neuronal network models and analysis scripts are available from the authors. ...
doi:10.1038/s41467-017-00936-3
pmid:28970502
pmcid:PMC5624961
fatcat:hv35pzruonfnnb42egf7g5hwjy
Insulin Modulation of Magnetoencephalographic Resting State Dynamics in Lean and Obese Subjects
2010
Frontiers in Systems Neuroscience
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In our study, we examined with whole-head magnetoencephalography the effect of intranasal insulin on the dynamics of the resting state network in a placebo controlled study. ...
However insulin also acts as an anorexic signal in the central nervous system contributing to the termination of food intake in the postprandial state. ...
Recent work of Deuker et al. (2009) indicated a low reliability of the results from graph analysis on resting state networks. ...
doi:10.3389/fnsys.2010.00157
pmid:21191479
pmcid:PMC3010825
fatcat:nog4pegh5bc7rn5zi5degiwsyu
Corticomuscular Transmission of Tremor Signals by Propriospinal Neurons in Parkinson's Disease
2013
PLoS ONE
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However, with the PN network, the alternating burst patterns of antagonist EMGs were naturally reproduced under all conditions of cortical oscillations. ...
The results suggest that cortical commands of single and double tremor frequencies are further processed at PN to compute the alternating burst patterns in flexor and extensor muscles, and the neuromuscular ...
Acknowledgments The authors would like to thank Dr. Daryl R. Kipke for insightful discussions on computational approach of PD and DBS.
Author Contributions ...
doi:10.1371/journal.pone.0079829
pmid:24278189
pmcid:PMC3835930
fatcat:d4ab52uf5nfu7jdiw6coozhhsi
Dynamics in cortical activity revealed by resting-state MEG rhythms
[article]
2020
arXiv
pre-print
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Interestingly, we find that the posterior cortex plays a cardinal role in both the dynamics and structure regarding the resting-state. ...
The oscillatory nature of brain activity allows these structures (nodes) to be described as a set of coupled oscillators forming a network where the node dynamics, and that of the network topology can ...
The procedure allowed us to identify some low-quality channels, which were then used in an Iterative Independent Component Analysis to identify other low-quality signals. ...
arXiv:2007.04500v1
fatcat:b2fbwvpqezdqxk6iebuqt6ibum
Modern Methods for Interrogating the Human Connectome
2016
Journal of the International Neuropsychological Society
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techniques used to measure functional and structural connectivity, including resting state functional MRI, diffusion MRI, and electroencephalography and magnetoencephalography coherence. ...
, as well as methodological limitations, of each imaging and analysis approach.Conclusions:The overall goal of this review is to provide the reader with an introduction to evaluating the scientific methods ...
Department of Defense (W81XWH-10-1-0609), and CHDI Foundation. ...
doi:10.1017/s1355617716000060
pmid:26888611
pmcid:PMC4827018
fatcat:kx3kjuue5retbjr3klnnj6ziq4
Effects of lesions on synchrony and metastability in cortical networks
2015
NeuroImage
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We discuss these results in the context of empirical studies of stroke and functional brain dynamics. ...
Of the nine nodal graph-theoretical properties tested, two were able to predict effects of node lesion on the global dynamics. ...
Acknowledgments We would like to thank Patric Hagmann for providing the structural and functional connectomes used in this study. ...
doi:10.1016/j.neuroimage.2015.05.042
pmid:26049146
fatcat:ynokmrppxnegldrtbtyfi6bcxm
Circadian challenge of astronauts' unconscious mind adapting to microgravity in space, estimated by heart rate variability
2018
Scientific Reports
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Beyond circadian rhythms, multi-frequency oscillations 12,18-20 include the ~90-minute basic rest-activity cycle (BRAC) 12 . ...
Improved β (p < 0.05) found in 4 astronauts with a positive activation in the "HRV slow-frequency oscillation" (0.10-0.20 Hz) occurred even in the absence of consciousness. ...
The authors also acknowledge the cooperation of the astronauts, the engineers, staff and managers of JAXA and NASA. The help of Larry A. ...
doi:10.1038/s41598-018-28740-z
pmid:29991811
pmcid:PMC6039530
fatcat:2smlgbj465cojnjbsohqaznbqy
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