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Ultra-high field fMRI reveals origins of feedforward and feedback activity within laminae of human ocular dominance columns

Gilles de Hollander, Wietske van der Zwaag, Chencan Qian, Peng Zhang, Tomas Knapen
2020 NeuroImage  
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]

Gilles de Hollander, Wietske van der Zwaag, Chencan Qiang, Peng Zhang, Tomas Knapen
2020 bioRxiv   pre-print
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

Jozien Goense, Yvette Bohraus, Nikos K. Logothetis
2016 Frontiers in Computational Neuroscience  
, 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

Michelle Moerel, Essa Yacoub, Omer Faruk Gulban, Agustin Lage-Castellanos, Federico De Martino
2020 Progress in Neurobiology  
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

Nikos K. Logothetis, Hellmut Merkle, Mark Augath, Torsten Trinath, Kâmil Uǧurbil
2002 Neuron  
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]

Tim van Mourik, Peter J Koopmans, Lauren Bains, David Norris, Janneke FM Jehee
2021 bioRxiv   pre-print
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  
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  
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  
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  
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  
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