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Dynamics on global brain networks at the neuronal resolution
2015
BMC Neuroscience
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We used a Multi-timescale adaptive threshold (MAT) model for the single neuron model, which has proven to be one of the most accurate models for reproducing the spike trains of a variety of cortical neurons ...
Furthermore, the cortical network used in our study includes "weight" of connections [8] . ...
We used a Multi-timescale adaptive threshold (MAT) model for the single neuron model, which has proven to be one of the most accurate models for reproducing the spike trains of a variety of cortical neurons ...
doi:10.1186/1471-2202-16-s1-p128
pmcid:PMC4697663
fatcat:k5nadqlmtfd5bed7cc4lsbi3q4
The Internet Diabetes Self-Management Workshop for American Indians and Alaska Natives
2011
Health Promotion Practice
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White matter damage impairs adaptive recovery more than cortical damage in an in silico model of activity-dependent plasticity. ...
Using this model, they compared the impact of neuronal cell loss or axonal dysfunction on the ability of the system to generate, maintain, and recover synapses. ...
This study was presented at the Neurobiology of Disease in Children Conference: Symposium on Injury to the Preterm Brain and Cerebral Palsy, in conjunction with the 37th Annual Meeting of the Child Neurology ...
doi:10.1177/0883073809338627
pmid:19745092
pmcid:PMC3840913
fatcat:yuthwoi3dfeqliti6pzrmhhwo4
The Internet Diabetes Self-Management Workshop for American Indians and Alaska Natives
2010
Health Promotion Practice
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White matter damage impairs adaptive recovery more than cortical damage in an in silico model of activity-dependent plasticity. ...
Using this model, they compared the impact of neuronal cell loss or axonal dysfunction on the ability of the system to generate, maintain, and recover synapses. ...
This study was presented at the Neurobiology of Disease in Children Conference: Symposium on Injury to the Preterm Brain and Cerebral Palsy, in conjunction with the 37th Annual Meeting of the Child Neurology ...
doi:10.1177/1524839909335178
pmid:20534807
fatcat:gh5bdlul45fytl6tsezjgm7kc4
Modelling cortical laminar connectivity in the macaque brain
[article]
2020
bioRxiv
pre-print
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This model uses a granularity-based approach to define a set of rules that expands cortical connections to the laminar level. ...
In this work, we revisit laminar-level connectivity in the macaque brain using a whole-brain MRI-based approach. ...
By using a data-driven model, we were able to combine results from diffusion-weighted imaging and T1-weighted imaging in order to estimate cortical laminar connectivity across the macaque brain. ...
doi:10.1101/2020.07.19.210526
fatcat:nuy7kolaqba6revo6zdhbjcmca
Adaptation of Brain Functional and Structural Networks in Aging
2015
PLoS ONE
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In addition, we found that the structural connectivity of the PFC with the temporal lobe was fully mediated by the temporal cortical thickness, suggesting that the brain morphology plays an important role ...
This study employed structural MRI, resting-state fMRI (rs-fMRI), and high angular resolution diffusion imaging (HARDI), and examined the functional and structural reorganization of the PFC in aging using ...
Lastly, in examining whether brain atrophy would account for age-related alterations in the connectivity strength, cortical thickness was also entered into the above regression model. ...
doi:10.1371/journal.pone.0123462
pmid:25875816
pmcid:PMC4398538
fatcat:hgtppb4mjvhsnn5fm5elw35mla
Whole brain comparative anatomy using connectivity blueprints
2018
eLife
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The blueprints provide a common reference space that allows us to navigate between brains of different species, identify homologous cortical areas, or to transform whole cortical maps from one species ...
We illustrate how this approach can be used to compare human and macaque brains. ...
of diffusion orientations using BedpostX, using a crossing fiber model limited to three fiber directions (Behrens et al. 2007) . ...
doi:10.7554/elife.35237
pmid:29749930
pmcid:PMC5984034
fatcat:3bonifhfprfgtpefeo4bn6kfr4
Multivariate analysis of thalamo-cortical connectivity loss in TBI
2008
2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
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with the mean diffusion within the thalamus and cortical regions. ...
Our objective is to use both modalities to build subject-specific, quantitative models of fiber connections in order to discover effects specific to a neural system. ...
This model is used to identify the particular cortical regions to which thalamic connections are compromised. ...
doi:10.1109/cvprw.2008.4562992
dblp:conf/cvpr/DudaAKZPWG08
fatcat:hvc2r6telbep3iqoxsqdwa3kt4
Whole brain comparative anatomy using connectivity blueprints
[article]
2018
bioRxiv
pre-print
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The blueprints provide a common reference space that allows us to navigate between brains of different species, identify homologue cortical areas, or to transform whole cortical maps from one species to ...
We illustrate how this approach can be used to compare human and macaque brains. ...
A crossing fibre model adapted to multi--shell data (Jbabdi et al. 2012 ) was fitted to the data prior to tractography. ...
doi:10.1101/245209
fatcat:doywhiylvrclvpa2qsu3kf5ude
Human connectomics
2012
Current Opinion in Neurobiology
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Collectively, advances in human connectomics open up the possibility of studying how brain connections mediate regional brain function and thence behaviour. ...
substrate, and the architecture of large-scale networks connecting sets of brain regions may be analyzed in detail. ...
Figure adapted from [38] . b. (b) These connectional differences can be used to delineate cortical regions. ...
doi:10.1016/j.conb.2011.08.005
pmid:21908183
pmcid:PMC3294015
fatcat:3ivb6cw6vrhrjksrp2faxrq5lm
MRI of the Neonatal Brain: A Review of Methodological Challenges and Neuroscientific Advances
2020
Journal of Magnetic Resonance Imaging
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The use of age-specific image postprocessing tools is also essential, as signal and contrast differ from the adult brain. ...
In this review article, we aim to highlight recent and representative studies using the various techniques available: anatomical MRI, quantitative MRI (relaxometry, diffusion MRI), multiparametric approaches ...
provided by the different diffusion models in the developing brain according to the age of newborns and the cortical regions. ...
doi:10.1002/jmri.27192
pmid:32420684
fatcat:ttakecloanaupet2ej7uk5nzxi
An adaptable neuromorphic model of orientation selectivity based on floating gate dynamics
2014
Frontiers in Neuroscience
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In this paper we use a novel time-staggered Winner Take All circuit, that exploits the adaptation dynamics of floating gate transistors, to model an adaptive cortical cell that demonstrates Orientation ...
Adaptation and self-organization are the two basic principles that underlie any cognitive function that the brain performs. ...
A major step toward building such systems would be to understand the underlying principles that the brain uses to accomplish adaptation. ...
doi:10.3389/fnins.2014.00054
pmid:24765062
pmcid:PMC3980111
fatcat:cwavpp2i6zc3tolhgvuyzmf5ha
An MRI-based, data-driven model of cortical laminar connectivity
[article]
2020
medRxiv
pre-print
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datasets into a novel way of exploring whole-brain tissue-level connectivity. ...
Our model addresses three principal cortical building blocks: cortical layer definitions (laminar grouping), vertical connections (intraregional, within the cortical microcircuit and subcortex) and horizontal ...
While the model does not offer individual region-specific models of cortical circuitry, it offers a more generalized whole-brain microcircuit model that is adapted regionally based on an atlas of granularity ...
doi:10.1101/2020.06.02.20120303
fatcat:xz7k2zib6rhszhgtlack3srj5a
Linking immune-mediated damage to neurodegeneration in multiple sclerosis: could network-based MRI help?
2021
Brain Communications
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There is an unmet need for a conceptual shift from a dualistic view of multiple sclerosis pathology, involving either inflammatory demyelination or neurodegeneration, to integrative dynamic models of brain ...
We propose that MRI-based brain networks characterization is essential for better delineating ongoing pathology and elaboration of particular mechanisms that may serve for accurate modelling and prediction ...
Notably, the brain network hubs are not only important because their topological centrality supports integrative network processing and adaptive responses, but also because their high connectivity makes ...
doi:10.1093/braincomms/fcab237
pmid:34729480
pmcid:PMC8557667
fatcat:r5kvglx3jfdnznq4rtozc6x54i
Diffuse neural coupling mediates complex network dynamics through the formation of quasi-critical brain states
2020
Nature Communications
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A potential solution may lie in a unique aspect of neurobiology, which is that numerous brain systems contain diffuse synaptic connectivity. ...
Here, we demonstrate that increasing diffuse cortical coupling within a validated biophysical corticothalamic model traverses the system through a quasi-critical regime in which spatial heterogeneities ...
cortical connectivity, and diffuse all-to-all uniform cortical connectivity. ...
doi:10.1038/s41467-020-19716-7
pmid:33303766
fatcat:q6vzadn7zrcn3apqu2lp4boeji
The NonHuman Primate Neuroimaging & Neuroanatomy Project
2021
NeuroImage
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diffusion MRI compare with long-distance connections measured using tract tracing. ...
macaque and marmoset monkeys using protocols and methods adapted from the HCP; (ii) acquire quantitative invasive tract-tracing data for cortical and subcortical projections to cortical areas; and (iii ...
Acknowledgements
This study is supported by a grant Brain/MINDS -beyond from
References under revision of this special issue of NeuroImage Autio, J.A., Zhu, Q., Li, X., Glasser, M.F., Schwiedrzik, ...
doi:10.1016/j.neuroimage.2021.117726
pmid:33484849
pmcid:PMC8079967
fatcat:tfv3sm6xpjfnfj2uarpqwnyc5u
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