For users that want to follow this, please see:
https://github.com/Washington-University/HCPpipelines/issues/108

It has something to do with the fact that we needed to apply manual 
reclassification of the FIX output in that particular subject/run.

Cheers,
-MH

--
Michael Harms, Ph.D.
-----------------------------------------------------------
Associate Professor of Psychiatry
Washington University School of Medicine
Department of Psychiatry, Box 8134
660 South Euclid Ave.                        Tel: 314-747-6173
St. Louis, MO  63110                          Email: mha...@wustl.edu

From: <hcp-users-boun...@humanconnectome.org> on behalf of Keith Jamison 
<kjami...@umn.edu>
Date: Tuesday, April 23, 2019 at 3:59 PM
To: HCP Users <HCP-Users@humanconnectome.org>
Subject: [HCP-Users] hp2000 filter not applied to hp2000_clean.nii.gz volume 
data for some (one?) subjects?

For subject 204218, both REST1_LR and REST1_RL, I noticed a linear trend in the 
*_hp2000_clean.nii.gz NIFTI time series, but the hp2000_clean.dtseries.nii 
CIFTI files do not have this trend. See attached figures showing this issue for 
both REST1_LR and REST1_RL for 204218. The overall mean time series has a 
negative trend for NIFTI, but in the voxel time series on the left you can see 
that some have positive trend and some have negative. To test, I did run 
fslmaths-based filtering on hp2000_clean.nii.gz and I no longer see any linear 
trend.

I tried one scan in one additional subject, 102311 REST1_LR, and did not see 
this linear trend in either NIFTI or CIFTI (also attached).

Note: I did remove the overall mean for each voxel timecourse before
plotting, and for the NIFTI I'm only showing gray matter voxels, as determined 
by downsampling aparc+aseg.nii.gz and excluding labels for WM,CSF,ventricles, 
and a few misc. I also tried looking at all non-zero voxels, as well as only 
those marked in RibbonVolumeToSurfaceMapping/goodvoxels.nii.gz, but the issue 
of linear trends is the same.

Any idea what might be going on with this subject? I haven't tried this in 
anyone other than 204218 (bad) and 102311 (good).

-Keith



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