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
September 16, 2019 02:52PM
Hello,

Since they are standard surface meshes, they have node correspondence (one node (index) is supposed to mean approximately the same location across subjects, subject to the FreeSurfer registration). That means you can combine/compare across subjects right now.

But the orig space coordinates will indeed vary. If coordinates matter, they should come from some template space, such as TLRC or MNI. But note that you can use ANY related standard mesh surface for node correspondence, including either of those template spaces. So just pick a std.141 surface from the template of your choice, such as suma_MNI152_2009.tgz. That has similar node correspondence with all of your subjects, but suddenly the coordinates mean something useful.

Does that seem reasonable?

- rick
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Displaying multiple subject-specific surface electrodes on a std.141.* surface

pmlauro September 16, 2019 01:43PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

rick reynolds September 16, 2019 02:52PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

pmlauro September 16, 2019 03:15PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

rick reynolds September 16, 2019 03:46PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

pmlauro September 16, 2019 04:49PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

pmlauro September 16, 2019 04:49PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

rick reynolds September 16, 2019 05:07PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

pmlauro September 18, 2019 09:23PM

Re: Displaying multiple subject-specific surface electrodes on a std.141.* surface

rick reynolds September 18, 2019 11:01PM