Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Peter J. Koopmans"'
Autor:
Viktor Pfaffenrot, Peter J. Koopmans
Publikováno v:
NeuroImage, Vol 264, Iss , Pp 119725- (2022)
Laminar functional magnetic resonance imaging (fMRI) using the gradient echo (GRE) blood oxygenation level dependent (BOLD) contrast is prone to signal changes arising from large unspecific venous vessels. Alternatives based on changes of cerebral bl
Externí odkaz:
https://doaj.org/article/a2ed19a011c84455be760d8f17ed508c
Publikováno v:
NeuroImage, Vol 236, Iss , Pp 118163- (2021)
Functional magnetic resonance imaging (fMRI) using blood oxygenation level dependent (BOLD) contrast at a sub-millimeter scale is a promising technique to probe neural activity at the level of cortical layers. While gradient echo (GRE) BOLD sequences
Externí odkaz:
https://doaj.org/article/71ea01ac46d147579460754b499c54af
Autor:
René Scheeringa, Mathilde Bonnefond, Tim van Mourik, Ole Jensen, David G Norris, Peter J Koopmans
Publikováno v:
Cerebral Cortex, 33, 5, pp. 1537-1549
Cerebral Cortex, 33, 1537-1549
Cerebral Cortex
Cerebral Cortex, 33, 1537-1549
Cerebral Cortex
Laminar functional magnetic resonance imaging (fMRI) holds the potential to study connectivity at the laminar level in humans. Here we analyze simultaneously recorded electroencephalography (EEG) and high-resolution fMRI data to investigate how EEG p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a88c1d53719f3a19028afae8d62c9a0
https://repository.ubn.ru.nl/handle/2066/250050
https://repository.ubn.ru.nl/handle/2066/250050
Publikováno v:
NeuroImage, Vol 236, Iss, Pp 118163-(2021)
Neuroimage, 236:118163. Elsevier Science
Neuroimage, 236:118163. Elsevier Science
Functional magnetic resonance imaging (fMRI) using blood oxygenation level dependent (BOLD) contrast at a sub-millimeter scale is a promising technique to probe neural activity at the level of cortical layers. While gradient echo (GRE) BOLD sequences
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::577d64ce68ee6f41c7a78b5f17c83af7
http://www.sciencedirect.com/science/article/pii/S1053811921004407
http://www.sciencedirect.com/science/article/pii/S1053811921004407
Autor:
Essa Yacoub, Peter J. Koopmans
Publikováno v:
NeuroImage. 197:668-676
Technological advancements in fMRI have afforded the opportunity to conduct submillimeter investigations into human brain function. The ability to do cortical depth dependent (or layer-specific) fMRI could allow probing intrinsic neuronal organizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a9767156e27d2f7fc4d682f7008f7e1
https://doi.org/10.1016/j.neuroimage.2019.03.024
https://doi.org/10.1016/j.neuroimage.2019.03.024
Directing spatial attention towards a particular stimulus location enhances cortical responses at corresponding regions in cortex. How attention modulates the laminar response profile within the attended region, however, remains unclear. In this pape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::289e1813bb1b563cee3d710d5e3fed6c
https://doi.org/10.1101/2021.02.07.430129
https://doi.org/10.1101/2021.02.07.430129
Autor:
Tim van Mourik, Mathilde Bonnefond, Ole Jensen, René Scheeringa, David G. Norris, Peter J. Koopmans
Laminar fMRI can non-invasively study brain activation and potentially connectivity at the laminar level in humans. In a previous simultaneous laminar fMRI/EEG experiment, we observed that attention effects in alpha, beta and gamma band EEG power rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::685bd584ac9ce28bbd4bf359bbf21ff5
https://doi.org/10.1101/2020.09.18.303263
https://doi.org/10.1101/2020.09.18.303263
Autor:
Peter J. Koopmans, Viktor Pfaffenrot
Publikováno v:
Magnetic resonance in medicineREFERENCES. 85(1)
Purpose To improve partial Fourier (PF) imaging reconstruction in time-series or multi-echo acquisitions. Methods Many PF methods use a phase estimate to restore Hermitian symmetry before filling missing k-space entries with measured data from the op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d97d64a7cb09704f7dc77a9a63df8ba4
https://pubmed.ncbi.nlm.nih.gov/32710491
https://pubmed.ncbi.nlm.nih.gov/32710491
Autor:
Thomas M. Ernst, Stephan Orzada, Oliver Kraff, Harald H. Quick, Stefan H. G. Rietsch, Viktor Pfaffenrot, Peter J. Koopmans, Sascha Brunheim
Publikováno v:
Magnetic Resonance in Medicine. 80:1252-1265
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f375628f108379ab1a043802f0d2d9c
https://doi.org/10.1002/mrm.27125
https://doi.org/10.1002/mrm.27125
Publikováno v:
Magnetic Resonance in Medicine. 82(1)
PurposeImage acceleration provides multiple benefits to diffusion MRI (dMRI), with in-plane acceleration reducing distortion and slice-wise acceleration increasing the number of directions that can be acquired in a given scan time. However, as accele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee80f5e278a9765f8d1e1bc3dd52b94f
http://ora.ox.ac.uk/objects/uuid:
http://ora.ox.ac.uk/objects/uuid: