AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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heretic133
January 09, 2017 05:32PM
Hi
I'm using uber_subject.py to preprocess my resting-state data.
There is an option in expected options section called 'motion censor limit' which is 0.2 by default. I can't fully understand this option. If I'm not wrong, 3dvolreg is used for head motion correction. So if the head motions are handled via 3dvolreg, what is the usage of motion censor limit.
And my other problem is that, when 'motion censor limit' is set to 0.2, I almost loose all (above 90%) subjects. when I set it to 0.3 it gets better, but again lots of subjects will be discarded. for my data 0.4 seems to work fine. But I don't know if 0.4 is a good limit in general.

My second question is "What if I set the 'motion censor limit' to a high value, in order to keep all my TRs" ? What will be the consequences?
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Subject Author Posted

3dvolreg and censor motion

heretic133 January 09, 2017 05:32PM

Re: 3dvolreg and censor motion

Bob Cox January 10, 2017 09:10AM