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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Nicholas Balderston
January 20, 2015 05:49PM
Hey Gang,

Thanks for the quick reply!

However based on your reply, I am not entirely sure I understand how 3dTcorrMap works.

As I understand it, for each voxel the program computes the correlation across the time domain, and then sums across the space domain. If this is the case, then the temporal discontinuities would create jumps in the data, thus increasing the shared variance.

Is it the case that for each voxel 3dTcorrMap computes the correlation across the space domain, and then sums across the time domain? If this is the case, wouldn't the output be a timecourse, rather than a spatial map?

Sorry for the confusion, and super thanks for the help.

-nick
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Subject Author Posted

Inputs for 3dTcorrMap during task-based fMRI

Nicholas Balderston January 20, 2015 01:56PM

Re: Inputs for 3dTcorrMap during task-based fMRI

gang January 20, 2015 03:03PM

Re: Inputs for 3dTcorrMap during task-based fMRI

Nicholas Balderston January 20, 2015 05:49PM

Re: Inputs for 3dTcorrMap during task-based fMRI

gang January 21, 2015 01:24PM

Re: Inputs for 3dTcorrMap during task-based fMRI

Nicholas Balderston January 21, 2015 01:44PM