External Email - Use Caution        

Hello, I’ve been trying to get to the bottom of why selxavg3-sess is failing 
for lack of a mcprextreg motion correction parameters file for one or more of 
the functional runs.
I have 6 runs of BOLD data, and following the last failed attempt, we cleared 
out the run folders to start again from scratch with preprocess on the f.nii 
volumes.

We are running preproc-sess on a per-run basis:

preproc-sess -s SUBJECTNAME -per-run -surface fsaverage lhrh -mni305 -fsd bold 
-fwhm 4 -sliceorder up

After doing this, we find that the folders for runs 1,2,3,4 and 6 contain the 
file mcprextreg, but run 5 does not. Consequently, selxavg3-sess throws an 
error and aborts when it fails to find this file for run 5. Prior to our 
do-over, we had the same issue, so it appears that this file is reliably not 
being generated only for run 5. To further the mystery, a second dataset 
(different participant) was recently preprocessed and also is missing this file 
for runs 1 and 5.

I notice that the runs with the missing motion correction parameter each 
contain a tmpdir.mcdat2extreg.##### folder, which suggests that the process 
might have not completed, though it’s odd that it would have completed for runs 
1-4 and 6, but not 5.

I was hoping someone might have some suggestions for debugging why this file 
might not be getting generated, as well as what steps might be taken to force 
its creation. I’m going to start by deleting the tmpdir folders.

Thanks,
Chris

/**********************************************
* Chris McNorgan
* Assistant Professor
* Department of Psychology
* University at Buffalo,
* The State University of New York
* http://ccnlab.buffalo.edu/
* Office: 716.645.0236
* Lab: 716.645.0222
**********************************************/

_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

Reply via email to