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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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I'm running a 3dttest++ on a group and will be performing cluster correction using 3dFWHMx and 3dClustSim.
For both the 3dttest++ and 3dFWHMx-3dClustSim steps, should I include a group mask in each? (i.e. group mask generated from 3dmask_tool -input -union)
thank you in advance!
-Alena
by
astasenko
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AFNI Message Board
Thanks, Gang. This is helpful - I will try both approaches. I should have clarified that our ultimate research goal is to be able to use this task to derive meaningful bilateral hippocampal activation on a single-subject level (i.e., clinical fMRI mapping) using a contrast of novel items vs. repeated items (in a memory encoding task). Please let me know if this changes your initial recommendati
by
astasenko
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AFNI Message Board
Hello,
In calculating the "n" to use for the TENT function, I am wondering if current best practice is to have number of TENTS to be TR-locked? I have a fast event-related design with a TR of 1.3 seconds and a stimulus duration of 1.5 seconds (with jittered ITI). I'm wondering if TENT (0,14,12) is appropriate to use or if there is an alternative? I came up with 12 based on t
by
astasenko
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AFNI Message Board
I am wondering if there is a command for extracting confidence intervals of my estimates (z-scores) using 3dttest ? thank you in advance!
by
astasenko
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AFNI Message Board