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Cerebral blood volume sensitive layer-fMRI in the human auditory cortex at 7T:Challenges and capabilities

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Title: Cerebral blood volume sensitive layer-fMRI in the human auditory cortex at 7T:Challenges and capabilities
Authors: Faes, Lonike K., De Martino, Federico, Huber, Laurentius Renzo
Source: Faes, L K, De Martino, F & Huber, L R 2023, 'Cerebral blood volume sensitive layer-fMRI in the human auditory cortex at 7T : Challenges and capabilities', PLOS ONE, vol. 18, no. 2, e0280855. https://doi.org/10.1371/journal.pone.0280855
Publication Year: 2023
Collection: Maastricht University Research Publications
Subject Terms: Humans, Magnetic Resonance Imaging/methods, Cerebral Blood Volume/physiology, Auditory Cortex/diagnostic imaging, Brain Mapping/methods, Image Processing, Computer-Assisted/methods, Cerebral Cortex/physiology
Description: The development of ultra high field fMRI signal readout strategies and contrasts has led to the possibility of imaging the human brain in vivo and non-invasively at increasingly higher spatial resolutions of cortical layers and columns. One emergent layer-fMRI acquisition method with increasing popularity is the cerebral blood volume sensitive sequence named vascular space occupancy (VASO). This approach has been shown to be mostly sensitive to locally-specific changes of laminar microvasculature, without unwanted biases of trans-laminar draining veins. Until now, however, VASO has not been applied in the technically challenging cortical area of the auditory cortex. Here, we describe the main challenges we encountered when developing a VASO protocol for auditory neuroscientific applications and the solutions we have adopted. With the resulting protocol, we present preliminary results of laminar responses to sounds and as a proof of concept for future investigations, we map the topographic representation of frequency preference (tonotopy) in the auditory cortex.
Document Type: article in journal/newspaper
Language: English
ISSN: 1932-6203
Relation: info:eu-repo/semantics/altIdentifier/pmid/36758009; info:eu-repo/semantics/altIdentifier/pissn/1932-6203
DOI: 10.1371/journal.pone.0280855
Availability: https://cris.maastrichtuniversity.nl/en/publications/4532114e-2266-4e55-8dc7-4b19775ce83b
https://doi.org/10.1371/journal.pone.0280855
Rights: info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/
Accession Number: edsbas.A282A86D
Database: BASE
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  Data: Cerebral blood volume sensitive layer-fMRI in the human auditory cortex at 7T:Challenges and capabilities
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  Data: <searchLink fieldCode="AR" term="%22Faes%2C+Lonike+K%2E%22">Faes, Lonike K.</searchLink><br /><searchLink fieldCode="AR" term="%22De+Martino%2C+Federico%22">De Martino, Federico</searchLink><br /><searchLink fieldCode="AR" term="%22Huber%2C+Laurentius+Renzo%22">Huber, Laurentius Renzo</searchLink>
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  Data: Faes, L K, De Martino, F & Huber, L R 2023, 'Cerebral blood volume sensitive layer-fMRI in the human auditory cortex at 7T : Challenges and capabilities', PLOS ONE, vol. 18, no. 2, e0280855. https://doi.org/10.1371/journal.pone.0280855
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  Data: The development of ultra high field fMRI signal readout strategies and contrasts has led to the possibility of imaging the human brain in vivo and non-invasively at increasingly higher spatial resolutions of cortical layers and columns. One emergent layer-fMRI acquisition method with increasing popularity is the cerebral blood volume sensitive sequence named vascular space occupancy (VASO). This approach has been shown to be mostly sensitive to locally-specific changes of laminar microvasculature, without unwanted biases of trans-laminar draining veins. Until now, however, VASO has not been applied in the technically challenging cortical area of the auditory cortex. Here, we describe the main challenges we encountered when developing a VASO protocol for auditory neuroscientific applications and the solutions we have adopted. With the resulting protocol, we present preliminary results of laminar responses to sounds and as a proof of concept for future investigations, we map the topographic representation of frequency preference (tonotopy) in the auditory cortex.
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  Data: 10.1371/journal.pone.0280855
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  Data: https://cris.maastrichtuniversity.nl/en/publications/4532114e-2266-4e55-8dc7-4b19775ce83b<br />https://doi.org/10.1371/journal.pone.0280855
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