Comparison of functional connectivity in default mode and sensorimotor networks at 3 and 7T.

Magma
Joanne R HalePeter G Morris

Abstract

The objective of this work was to assess functional connectivity measurements at ultra-high field (7T), given BOLD contrast to noise ratio increases with magnetic field strength but physiological noise also increases. Resting state BOLD data were acquired at 3 and 7T to assess connectivity in the sensorimotor network (SMN) and default mode network (DMN) at different spatial smoothing levels. At 3 and 7T positive correlation is observed between a right sensorimotor seed and left sensorimotor cortex. For the DMN, a seed in posterior cingulate cortex results in a high correlation in inferior parietal lobes and medial prefrontal cortex. We show higher temporal correlation coefficients for both the SMN and DMN at 7T compared to 3T for all smoothing levels. A spatial correlation between connectivity maps revealed no significant differences for the SMN, whilst the DMN showed increased spatial correlation dependent on SNR. The maximum physiological noise contribution was found to be higher at 7T, but noise in both seed and network nodes was not significantly increased, as shown by no significant difference in the spatial correlation of maps following physiological correction. 7T can improve spatial specificity of connectivity maps and ...Continue Reading

References

Oct 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·B BiswalJ S Hyde
Aug 1, 1997·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J S GatiB K Rutt
Jul 2, 1998·Brain : a Journal of Neurology·M M Mesulam
Jul 14, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·G H GloverD Ress
Feb 24, 2001·Proceedings of the National Academy of Sciences of the United States of America·M E RaichleG L Shulman
Feb 24, 2001·Proceedings of the National Academy of Sciences of the United States of America·J R SimpsonM E Raichle
Mar 22, 2001·Proceedings of the National Academy of Sciences of the United States of America·D A GusnardM E Raichle
Aug 23, 2001·Medical Image Analysis·M Jenkinson, S Smith
Oct 5, 2001·Nature Reviews. Neuroscience·D A GusnardM E Raichle
Sep 28, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Timothy Q DuongSeong-Gi Kim
Oct 23, 2002·Human Brain Mapping·Stephen M Smith
Jan 6, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jacco A de ZwartJeff H Duyn
Aug 10, 2005·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Christian F BeckmannStephen M Smith
Aug 21, 2007·Nature Reviews. Neuroscience·Michael D Fox, Marcus E Raichle
Jan 9, 2008·Magma·Michael Poole, Richard Bowtell
Jul 9, 2009·Proceedings of the National Academy of Sciences of the United States of America·Kai J MillerJeffrey G Ojemann
Nov 20, 2009·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Angela R LairdPeter T Fox

❮ Previous
Next ❯

Citations

Dec 8, 2010·Magma·Ewald Moser, Jean-Philippe Ranjeva
Mar 18, 2015·NeuroImage·Tamar R MakinHeidi Johansen-Berg
Jun 12, 2013·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Nina TheysohnIndira Tendolkar
Jul 31, 2013·Epilepsia·Jullie W PanDennis D Spencer
Mar 1, 2011·NeuroImage·Matthew J BrookesSrikantan S Nagarajan
Nov 10, 2013·The American Journal of Drug and Alcohol Abuse·Andrea D SpadoniSusan F Tapert
May 16, 2015·Scientific Data·Krzysztof J GorgolewskiDaniel S Margulies
Mar 24, 2017·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Abd-Krim Seghouane, Asif Iqbal
Dec 16, 2016·Nature Reviews. Neuroscience·Birte U ForstmannMax C Keuken
Feb 21, 2019·Journal of Neurophysiology·Rodrigo M BragaRandy L Buckner
Aug 15, 2014·Physiological Measurement·Sue Francis, Rosa Sanchez Panchuelo
Nov 20, 2016·NeuroImage·Ravi D MillMichael W Cole
Sep 4, 2021·NeuroImage·Luisa RaimondoWietske van der Zwaag

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Jullie W PanH P Hetherington
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
N I AvdievichH P Hetherington
© 2021 Meta ULC. All rights reserved