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Ultra-high field fMRI reveals origins of feedforward and feedback activity within laminae of human ocular dominance columns
2020
NeuroImage
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Ultra-high field MRI can functionally image the cerebral cortex of human subjects at the submillimeter scale of cortical columns and laminae. ...
Here, we investigate both in concert, by imaging ocular dominance columns (ODCs) in primary visual cortex (V1) across different cortical depths. ...
Acknowledgements We would like to thank Serge Dumoulin, Kendrick Kay and Eli Merriam for feedback on earlier drafts of this manuscript. ...
doi:10.1016/j.neuroimage.2020.117683
pmid:33385565
fatcat:diixe3nucbabpfxeim4mzxxtyu
Ultra-high resolution fMRI reveals origins of feedforward and feedback activity within laminae of human ocular dominance columns
[article]
2020
bioRxiv
pre-print
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Ultra-high field MRI can functionally image the cerebral cortex of human subjects at the submillimeter scale of cortical columns and laminae. ...
Here, we investigate both in concert, by, for the first time, imaging ocular dominance columns (ODCs) in primary visual cortex (V1) across different cortical depths. ...
Significance Statement The advent of ultra-high field fMRI allows for the study of the human brain non-invasively at submillimeter resolution, bringing the scale of cortical columns and laminae into focus ...
doi:10.1101/2020.05.19.102186
fatcat:o2sxkuovfzgmdiz2ae44o55ul4
fMRI at High Spatial Resolution: Implications for BOLD-Models
2016
Frontiers in Computational Neuroscience
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, and can aid modeling and interpretation of high-resolution fMRI. ...
As high-resolution functional magnetic resonance imaging (fMRI) and fMRI of cortical layers become more widely used, the question how well high-resolution fMRI signals reflect the underlying neural processing ...
The increase in SNR and the increase in BOLD signal at high field allow higher fMRI resolution, and increasing the image resolution has been the driving force behind the development of ultra high field ...
doi:10.3389/fncom.2016.00066
pmid:27445782
pmcid:PMC4923185
fatcat:75fvkjm56fgozaxdlsqfisrqp4
Using high spatial resolution fMRI to understand representation in the auditory network
2020
Progress in Neurobiology
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Following rapid methodological advances, ultra-high field (UHF) functional and anatomical magnetic resonance imaging (MRI) has been repeatedly and successfully used for the investigation of the human auditory ...
Finally, the access to independent signals across auditory cortical depths, as afforded by UHF, may reveal the computations that underlie the emergence of an abstract, categorical sound representation ...
The main strength of ultra-high field fMRI lies in the combination of the spatial resolution required to access the mesoscopic scale (accessing feedforward and feedback processing through subdivisions ...
doi:10.1016/j.pneurobio.2020.101887
pmid:32745500
pmcid:PMC7854960
fatcat:pmf22ryt65cerow24pbzlyly2m
Ultra High-Resolution fMRI in Monkeys with Implanted RF Coils
2002
Neuron
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Spatial specificity was demonstrated by the lamina-specific activation in experiments compar-ROI. ...
Voxel sizes as small as 0.0113 l with high signal-to-noise and contrast-to-noise ratios were ultra high-resolution (0.125 ϫ 0.125 ϫ 0.720-1.0 mm 3 ) structural and functional images from the visual cortex ...
It has been suggested that highresolution imaging capable of revealing ocular domi-High-resolution fMRI revealing cortical microarchitecture was recently reported in human fMRI experiments nance or orientation ...
doi:10.1016/s0896-6273(02)00775-4
pmid:12160742
fatcat:6n6mez43sngmzhwrimy7dgpjlm
Investigation of layer specific BOLD in the human visual cortex during visual attention
[article]
2021
bioRxiv
pre-print
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In this paper, we use high field (7T) fMRI to investigate the effects of attention on laminar activity profiles in areas V1-V3; both when a stimulus was presented to the observer, and in the absence of ...
of analytical flexibility. ...
Ultra-high field fMRI reveals origins 554 of feedforward and feedback activity within laminae of human ocular dominance columns. ...
doi:10.1101/2021.02.07.430129
fatcat:ep5wo5w7xva4toeg3jlo4l7mfq
The 9th Asia-Pacific Conference on Vision (APCV 2013)
2013
PsyCh Journal
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Some of the insect-based strategies described above are being used to design, implement and test biologically-inspired algorithms for the guidance of autonomous terrestrial and aerial vehicles. ...
Bees and birds negotiate narrow gaps safely by balancing the apparent speeds of the images in the two eyes. ...
perception normally relying on feedforward and feedback streams of information between the visual areas. ...
doi:10.1002/pchj.33
fatcat:pvmwjxgldreyvlx47o3pi5ikdi
27th Annual Computational Neuroscience Meeting (CNS*2018): Part One
2018
BMC Neuroscience
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Alliance through the Initiative and Networking Fund of the Helmholtz Association and the Helmholtz Portfolio theme "Supercomputing and Modeling for the Human Brain" and the European Union Seventh Framework ...
Acknowledgements We acknowledge the Initiative and Networking Fund of the Helmholtz Association, the Helmholtz Association through the Helmholtz Portfolio Theme"Supercomputing and Modeling for the Human ...
laminae during burst-like periods of activity. ...
doi:10.1186/s12868-018-0452-x
pmid:30373544
pmcid:PMC6205781
fatcat:xv7pgbp76zbdfksl545xof2vzy
Abstracts of the 12th Annual Meeting of Israel Society for Neuroscience
2003
Neural Plasticity
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In lateralized lexica[decision, both C3 and C4 feedback affected both hemispheres, though differently in boys and girls. ...
Several years ago we have demonstrated that High-Frequency Stimulation (HFS) to the perforant pathwav (PP), which induces LTP in the Dentate Gyrus (DG), resul[s in alterations also in local circuit activity ...
High frequency local field potentials in the striatum of the halothane-anaesthetized rat Together with electrocoicoams from both hemispheres, we recorded single-and multiit activity as well' as local field ...
doi:10.1155/np.2003.179
pmid:14712829
pmcid:PMC2565426
fatcat:4midzhgcurdejakjjwizqvpguq
List of Abstracts from the Twenty-ninth Annual Meeting of the Association for Chemoreception Sciences
2007
Chemical Senses
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of social behavior using the "evo-devo" paradigm, and a new perspective on the nature-nurture problem. ...
Honey bees have a brain the size of a grass seed, yet live together in societies that rival our own in complexity and internal cohesion. How do they stick together and work together so well? ...
Patch clamp studies from identified prehypoglossal RF neurons revealed that some inhibition originated from within the rNST. ...
doi:10.1093/chemse/bjm024
fatcat:vvc2tltr6ff2jpjf5oexocyuyy
BNA Festival of Neuroscience 2019
2019
Brain and Neuroscience Advances
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somatomotor network of the subgroup at sparsity 10% and 15% (Ps=0.000). ...
This was done for the entire population and the subgroup. Results: The MANCOVA revealed no statistically significant differences between groups at any sparsity level. ...
ocular dominance (OD) plasticity. ...
doi:10.1177/2398212819855490
fatcat:y4b5r7rpdnblzoxvb2crpzqhee