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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mimi
February 10, 2003 03:05PM
We use this command to to get bold dataset:
to3d -epan -prefix bold -session . -time:tz $tp $nslice 4.0s seqplus "3Ds:0:0:64:64:$tp:f_???.bshort"
and we get the motion outliers from running this command.
the outlier file is a graph, x axial is time point, y axial is motion , our questions are:
1. what is the unit of the number of motion, like if the motion is 300, 100, 10000, what is the real distance the subject moved.
2. I also saw another kind of outlier graph, it gives out different graph for motion in different directions, how to produce such a graph? and what is the unit of motion number? like does 300 unit of motion mean 3cm?
3. what kind of graph should we use when we want to judge the seriousness of motion? the graph in 1 or in 2?
4. this question may be irellavant: what should be the standard of "excessive motion"?

thank you very much.
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about excessive motion

mimi February 10, 2003 03:05PM

Re: about excessive motion

sally durgerian February 10, 2003 03:29PM