Results 31 to 40 of about 63,144 (227)

Monkey in the middle: why non-human primates are needed to bridge the gap in resting-state investigations [PDF]

open access: yes, 2012
Resting-state investigations based on the evaluation of intrinsic low-frequency fluctuations of the BOLD fMRI signal have been extensively utilized to map the structure and dynamics of large-scale functional network organization in humans. In addition to
R. Matthew Hutchison, Stefan Everling
core   +1 more source

A DCM for resting state fMRI

open access: yesNeuroImage, 2014
This technical note introduces a dynamic causal model (DCM) for resting state fMRI time series based upon observed functional connectivity--as measured by the cross spectra among different brain regions. This DCM is based upon a deterministic model that generates predicted crossed spectra from a biophysically plausible model of coupled neuronal ...
Friston, Karl J.   +3 more
openaire   +3 more sources

Resting State fMRI: Going Through the Motions [PDF]

open access: yesFrontiers in Neuroscience, 2019
Resting state functional magnetic resonance imaging (rs-fMRI) has become an indispensable tool in neuroscience research. Despite this, rs-fMRI signals are easily contaminated by artifacts arising from movement of the head during data collection. The artifacts can be problematic even for motions on the millimeter scale, with complex spatiotemporal ...
Sanam Maknojia   +6 more
openaire   +3 more sources

Multiscale network activity in resting state fMRI [PDF]

open access: yes2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2016
The brain is inherently multiscalar in both space and time. We argue that this multiscalar nature is reflected in the blood oxygenation level dependent (BOLD) fluctuations used to map functional connectivity. We present evidence that global fluctuations in activity, quasiperiodic spatiotemporal patterns, and aperiodic time-varying activity coexist ...
Shella D, Keilholz   +7 more
openaire   +2 more sources

Semiparametric Estimation of Task-Based Dynamic Functional Connectivity on the Population Level [PDF]

open access: yes, 2019
Dynamic functional connectivity (dFC) estimates time-dependent associations between pairs of brain region time series as typically acquired during functional MRI.
Dzemidzic, Mario   +6 more
core   +1 more source

The neural basis of unwanted thoughts during resting state. [PDF]

open access: yes, 2013
Human beings are constantly engaged in thought. Sometimes thoughts occur repetitively and can become distressing. Up to now the neural bases of these intrusive or unwanted thoughts is largely unexplored.
De Raedt, Rudi   +3 more
core   +2 more sources

Does higher sampling rate (multiband + SENSE) improve group statistics - An example from social neuroscience block design at 3T [PDF]

open access: yes, 2020
Multiband (MB) or Simultaneous multi-slice (SMS) acquisition schemes allow the acquisition of MRI signals from more than one spatial coordinate at a time.
Angelis, Lorenzo De   +7 more
core   +3 more sources

A comparison of resting state functional magnetic resonance imaging to invasive electrocortical stimulation for sensorimotor mapping in pediatric patients [PDF]

open access: yes, 2019
Localizing neurologic function within the brain remains a significant challenge in clinical neurosurgery. Invasive mapping with direct electrocortical stimulation currently is the clinical gold standard but is impractical in young or cognitively delayed ...
Hacker, Carl D   +7 more
core   +2 more sources

The Relationship Between Inflammation and Central Nervous System in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Aim Multiple sclerosis is an autoimmune demyelination disease that is seen especially in the young population and has a progressive course, causing motor, sensory, and cognitive deficits. In the literature, the pathogenesis of MS disease and the interconnection between the immune and central nervous system in the disease have not been fully ...
Gamze Ansen   +5 more
wiley   +1 more source

Lewy body compared with Alzheimer dementia is associated with decreased functional connectivity in resting state networks.

open access: yes, 2014
Resting state functional magnetic resonance imaging (fMRI) was used to measure whole brain functional connectivity within specific networks hypothesised to be more affected in dementia with Lewy bodies (DLB) (a disease characterised by prominent ...
Blamire, Andrew M   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy