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  Weight loss reduces head motion: Revisiting a major confound in neuroimaging

Beyer, F., Prehn, K., Wüsten, K. A., Villringer, A., Ordemann, J., Flöel, A., et al. (2020). Weight loss reduces head motion: Revisiting a major confound in neuroimaging. Human Brain Mapping. doi:10.1002/hbm.24959.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-0CFD-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-0CFE-0
Genre: Journal Article

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 Creators:
Beyer, Frauke1, 2, Author              
Prehn, Kristin3, 4, Author
Wüsten, Katharina A.5, 6, Author
Villringer, Arno1, 2, Author              
Ordemann, Jürgen7, 8, Author
Flöel, Agnes3, 5, 6, 9, Author
Witte, A. Veronica1, 2, Author              
Affiliations:
1Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
2Collaborative Research Center Obesity Mechanisms, Institute of Biochemistry, University of Leipzig, Germany, ou_persistent22              
3NeuroCure Clinical Research Center, Charité University Medicine Berlin, Germany, ou_persistent22              
4Department of Psychology, MSH Medical School Hamburg, Germany, ou_persistent22              
5Department of Psychology, Ernst Moritz Arndt University of Greifswald, Germany, ou_persistent22              
6German Center for Neurodegenerative Diseases, Rostock, Germany, ou_persistent22              
7Center for Bariatric and Metabolic Surgery, Charité University Medicine Berlin, Germany, ou_persistent22              
8Center for Adiposity and Metabolic Surgery, Vivantes Hospitals, Berlin, Germany, ou_persistent22              
9Center for Stroke Research, Charité University Medicine Berlin, Germany, ou_persistent22              

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Free keywords: Body mass index; Head motion; Imaging artifact; Neuroimaging; Obesity; Resting state fMRI
 Abstract: Head motion during magnetic resonance imaging (MRI) induces image artifacts that affect virtually every brain measure. In parallel, cross‐sectional observations indicate a correlation of head motion with age, psychiatric disease status and obesity, raising the possibility of a systematic artifact‐induced bias in neuroimaging outcomes in these conditions, due to the differences in head motion. Yet, a causal link between obesity and head motion has not been tested in an experimental design. Here, we show that a change in body mass index (BMI) (i.e., weight loss after bariatric surgery) systematically decreases head motion during MRI. In this setting, reduced imaging artifacts due to lower head motion might result in biased estimates of neural differences induced by changes in BMI. Overall, our finding urges the need to rigorously control for head motion during MRI to enable valid results of neuroimaging outcomes in populations that differ in head motion due to obesity or other conditions.

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Language(s): eng - English
 Dates: 2020-01-172019-10-152020-02-112020-04-02
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1002/hbm.24959
Other: Epub ahead of print
PMID: 32239733
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Title: Human Brain Mapping
Source Genre: Journal
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Publ. Info: New York : Wiley-Liss
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 1065-9471
CoNE: https://pure.mpg.de/cone/journals/resource/954925601686