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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rick reynolds
July 09, 2009 04:36PM
Hi Christy,

As Ziad said, slow motion is okay, but sudden is not. In light
of that, many people just look at the derivative of the motion
parameters and look for large numbers. Those would indicate
sudden and large motion.

Some people might censor any pair of TRs with a derivative of
more than 1, 1.5 or 2, for example.

1d_tool.py can take the derivative of motion files, either as
single runs or concatenated runs.

Consider example 7 of "1d_tool.py -help". Please feel free to
ask for details about the program.

- rick

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Subject Author Posted

evaluating motion correction

Christy Wilson July 09, 2009 02:04PM

Re: evaluating motion correction

ziad July 09, 2009 04:05PM

Re: evaluating motion correction

Christy Wilson July 13, 2009 10:29AM

Re: evaluating motion correction

rick reynolds July 13, 2009 11:13AM

Re: evaluating motion correction

Christy Wilson July 13, 2009 11:41AM

Re: evaluating motion correction

rick reynolds July 09, 2009 04:36PM