Geometric effects of volume-to-surface mapping of fMRI data

In this work, we identify a problem with the process of volume-to-surface mapping of functional Magnetic Resonance Imaging (fMRI) data that emerges in local connectivity analysis. We show that neighborhood correlations on the surface of the brain vary spatially with the gyral structure, even when th...

Descripción completa

Detalles Bibliográficos
Autores principales: Ciantar, Keith George, Farrugia, Christine, Galdi, Paola, Scerri, Kenneth, Xu, Ting, Bajada, Claude J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2022
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418299/
https://www.ncbi.nlm.nih.gov/pubmed/35895147
http://dx.doi.org/10.1007/s00429-022-02536-4
_version_ 1784776918435889152
author Ciantar, Keith George
Farrugia, Christine
Galdi, Paola
Scerri, Kenneth
Xu, Ting
Bajada, Claude J.
author_facet Ciantar, Keith George
Farrugia, Christine
Galdi, Paola
Scerri, Kenneth
Xu, Ting
Bajada, Claude J.
author_sort Ciantar, Keith George
collection PubMed
description In this work, we identify a problem with the process of volume-to-surface mapping of functional Magnetic Resonance Imaging (fMRI) data that emerges in local connectivity analysis. We show that neighborhood correlations on the surface of the brain vary spatially with the gyral structure, even when the underlying volumetric data are uncorrelated noise. This could potentially have impacted studies focusing upon local neighborhood connectivity. We explore the effects of this anomaly across varying data resolutions and surface mesh densities, and propose several measures to mitigate these unwanted effects.
format Online
Article
Text
id pubmed-9418299
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Springer Berlin Heidelberg
record_format MEDLINE/PubMed
spelling pubmed-94182992022-08-28 Geometric effects of volume-to-surface mapping of fMRI data Ciantar, Keith George Farrugia, Christine Galdi, Paola Scerri, Kenneth Xu, Ting Bajada, Claude J. Brain Struct Funct Original Article In this work, we identify a problem with the process of volume-to-surface mapping of functional Magnetic Resonance Imaging (fMRI) data that emerges in local connectivity analysis. We show that neighborhood correlations on the surface of the brain vary spatially with the gyral structure, even when the underlying volumetric data are uncorrelated noise. This could potentially have impacted studies focusing upon local neighborhood connectivity. We explore the effects of this anomaly across varying data resolutions and surface mesh densities, and propose several measures to mitigate these unwanted effects. Springer Berlin Heidelberg 2022-07-27 2022 /pmc/articles/PMC9418299/ /pubmed/35895147 http://dx.doi.org/10.1007/s00429-022-02536-4 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Article
Ciantar, Keith George
Farrugia, Christine
Galdi, Paola
Scerri, Kenneth
Xu, Ting
Bajada, Claude J.
Geometric effects of volume-to-surface mapping of fMRI data
title Geometric effects of volume-to-surface mapping of fMRI data
title_full Geometric effects of volume-to-surface mapping of fMRI data
title_fullStr Geometric effects of volume-to-surface mapping of fMRI data
title_full_unstemmed Geometric effects of volume-to-surface mapping of fMRI data
title_short Geometric effects of volume-to-surface mapping of fMRI data
title_sort geometric effects of volume-to-surface mapping of fmri data
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9418299/
https://www.ncbi.nlm.nih.gov/pubmed/35895147
http://dx.doi.org/10.1007/s00429-022-02536-4
work_keys_str_mv AT ciantarkeithgeorge geometriceffectsofvolumetosurfacemappingoffmridata
AT farrugiachristine geometriceffectsofvolumetosurfacemappingoffmridata
AT galdipaola geometriceffectsofvolumetosurfacemappingoffmridata
AT scerrikenneth geometriceffectsofvolumetosurfacemappingoffmridata
AT xuting geometriceffectsofvolumetosurfacemappingoffmridata
AT bajadaclaudej geometriceffectsofvolumetosurfacemappingoffmridata

Ejemplares similares