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help > QC_timeseries not in confounds
Apr 8, 2019 08:04 PM | Fatima Sibaii - University of nebraska- lincoln
QC_timeseries not in confounds
Hey
I really appreciate this forum, I have been able to find answers to questions I've faced several times, and I think that has really helped make CONN a successful and relevant toolbox.
I'm running a task-related connectivity analysis using CONN 18.a. I have noticed that QC_timeseries; which is a first level covariate, is not regressed out of BOLD as a confound in the first level analysis (under the denoising tab, choosing confounds). This surprised me since I thought by default all first level covariates are regressed out in this stage. Since this is the output of ART which includes the raw motion and global signal change timeseries, shouldn't be regressed out? Is it left in the effects because it is regressed out before in the preprocessing step?
Thanks
Fatima
I really appreciate this forum, I have been able to find answers to questions I've faced several times, and I think that has really helped make CONN a successful and relevant toolbox.
I'm running a task-related connectivity analysis using CONN 18.a. I have noticed that QC_timeseries; which is a first level covariate, is not regressed out of BOLD as a confound in the first level analysis (under the denoising tab, choosing confounds). This surprised me since I thought by default all first level covariates are regressed out in this stage. Since this is the output of ART which includes the raw motion and global signal change timeseries, shouldn't be regressed out? Is it left in the effects because it is regressed out before in the preprocessing step?
Thanks
Fatima
Threaded View
Title | Author | Date |
---|---|---|
Fatima Sibaii | Apr 8, 2019 | |
Alfonso Nieto-Castanon | Apr 10, 2019 | |
Fatima Sibaii | Apr 11, 2019 | |