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Isolating the sources of pipeline‐variability in group‐level task‐fMRI results

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Bowring, Alexander, Nichols, Thomas E. and Maumet, Camille (2021) Isolating the sources of pipeline‐variability in group‐level task‐fMRI results. Human Brain Mapping . doi:10.1002/hbm.25713 ISSN 1097-0193.

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Official URL: https://doi.org/10.1002/hbm.25713

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Abstract

Task‐fMRI researchers have great flexibility as to how they analyze their data, with multiple methodological options to choose from at each stage of the analysis workflow. While the development of tools and techniques has broadened our horizons for comprehending the complexities of the human brain, a growing body of research has highlighted the pitfalls of such methodological plurality. In a recent study, we found that the choice of software package used to run the analysis pipeline can have a considerable impact on the final group‐level results of a task‐fMRI investigation (Bowring et al., 2019, BMN). Here we revisit our work, seeking to identify the stages of the pipeline where the greatest variation between analysis software is induced. We carry out further analyses on the three datasets evaluated in BMN, employing a common processing strategy across parts of the analysis workflow and then utilizing procedures from three software packages (AFNI, FSL, and SPM) across the remaining steps of the pipeline. We use quantitative methods to compare the statistical maps and isolate the main stages of the workflow where the three packages diverge. Across all datasets, we find that variation between the packages' results is largely attributable to a handful of individual analysis stages, and that these sources of variability were heterogeneous across the datasets (e.g., choice of first‐level signal model had the most impact for the balloon analog risk task dataset, while first‐level noise model and group‐level model were more influential for the false belief and antisaccade task datasets, respectively). We also observe areas of the analysis workflow where changing the software package causes minimal differences in the final results, finding that the group‐level results were largely unaffected by which software package was used to model the low‐frequency fMRI drifts.

Item Type: Journal Article
Subjects: Q Science > QP Physiology
R Medicine > RC Internal medicine
Divisions: Faculty of Science, Engineering and Medicine > Science > Statistics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Diagnostic imaging , Diagnostic imaging -- Data processing , Brain -- Magnetic resonance imaging -- Software, Brain mapping, Brain mapping -- Statistical methods, Magnetic resonance imaging -- Data processing
Journal or Publication Title: Human Brain Mapping
Publisher: John Wiley & Sons, Inc.
ISSN: 1097-0193
Official Date: 2021
Dates:
DateEvent
2021Published
13 November 2021Available
15 October 2021Accepted
DOI: 10.1002/hbm.25713
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): ** Article version: VoR ** From Wiley via Jisc Publications Router ** History: received 27-07-2021; rev-recd 28-09-2021; accepted 15-10-2021; pub-electronic 13-11-2021. ** Licence for VoR version of this article: http://creativecommons.org/licenses/by/4.0/
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 29 November 2021
Date of first compliant Open Access: 30 November 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
20319/Z/16/ZWellcome Trusthttp://dx.doi.org/10.13039/100010269
R01MH096906National Institute for Health Researchhttp://dx.doi.org/10.13039/501100000272
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