A prevalent and sex-biased respiratory pattern influences functional connectivity MRI in young adults
Jonathan Power, Charles J Lynch, Benjamin Silver, Alex Martin, Rebecca Jones
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Below are movies and files associated with the article "A prevalent and sex-biased respiratory pattern influences functional connectivity MRI in young adults". All movies are 1080p and will look best at full-screen resolutions. The movies stream from YouTube. Click on links to download movies or files. Files to download are hosted on Dropbox Pro; if the links don't work our traffic has exceeded its 200GB/day limit and the links will be re-enabled the following day.
Data quality check:
A movie of the physiology traces of the 900-subject release Human Connectome Project (HCP) and decisions about whether data quality was sufficient for use was part of the supplemental material of another paper and can be found here. These traces and decisions are the basis of selecting 440 of the 900 subjects for analysis. The data analyzed are exactly the data analyzed in this paper and in this paper.
Movie S1 (.mov - 1.4 GB)
This movie illustrates each run of the 440 analyzed subjects. At top the first panel shows head position traces (gray) and motion traces (red), the second panel shows DVARS traces before (light green) and after (dark green) FIX-ICA, the third panel shows in blue the respiratory belt trace and the derived ENV (red), RV (blue) and RVT (black) traces. The fourth panel shows as a grayscale heat map all in-brain time series of the image before and after FIX-ICA (as successive frames of the movie).
Movie S2 (.mov - 16 MB)
These movies show the 15 deep breaths and 15 bursts used to summarize respiratory pattern properties. 15 gray plots for each pattern are shown, from different subjects, with vertical red lines denoting the 90 seconds of data examined and t = 0.
Movie S3 (.mov - 130 MB)
These movies show the gray plots of the 21 subjects in each group of scan types. Burst scans have prominent bursts in most or all scans and little to no evidence of single deep breaths, single deep breath scans have prominent single deep breaths in most or all scans and little to no evidence of burst patterns, and clean scans have minimal or no evidence of either pattern in all scans.
Table S1 (.xlsx): Table of 782 HCP variables and the significance of the 3 real groups and 50 random groups among 10,000 permutation tests. All of these variables are shown in the heat maps in Figure 16, and select variables are listed in Figure 16. Additionally, here is a list of variables associated with each group, and similar lists for 3 of the random groups.