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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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Hi again,
Re-posting my question from last week:
Could you please clarify the consequence of excluding the 1 from BLOCK or dmBLOCK ?
From what I've read, it sounds like it doesn't matter too much as long as I am only comparing stimuli within a class (i.e., both specified by 'BLOCK(6)'). But, at the same time, it might be safest to just include parameter as 1 unless I
by
KristinBH
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AFNI Message Board
Hi Rick,
Thank you for your informative response.
To clarify, I only plan to make comparisons within each class (within anticipation, comparing a fear anticipation to a no fear anticipation; within stimulation, pain stimulation vs. no pain stimulation; the four conditions indicated by separate regressors). I have also decided to add cue to anticipation, so now there are only two classes of
by
KristinBH
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AFNI Message Board
Apologies if these questions are addressed in the help files - I've spent quite a bit of time looking through them but I'm still not confident in the correct way to proceed.
I have a task with four major events (cue, anticipation, stimulation, and rest) in which I will be entering regressors for cue (always 3s), anticipation (variable between 3s, 6s, 9s, and 12s), and stimulation (al
by
KristinBH
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AFNI Message Board
Hi,
I am interested in using the Juelich probabilistic atlas of the subnuclei of the amygdala from FSL as seed regions in GroupInCorr.
I created binarized masks of each subnucleus in FSL (and also added them together to create binarized whole amygdala masks), used 3dwarp to transform from MNI to Talairach space, used 3dresample to resample to 3x3x3mm resolution and RAI orientation, but now
by
KristinBH
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AFNI Message Board
Hi,
I have a question about the correct approach for applying an ROI mask to a group analysis (e.g. a between-groups t-test).
I have two groups that I am comparing during a certain contrast (e.g. emotional-neutral), and I am interested in the left and right amygdala.
Using an anatomically-derived amygdala mask (as opposed to a whole brain mask) during the 3dttest++ command with two sets
by
KristinBH
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AFNI Message Board
Hi there,
I have a pretty basic question. I ran a 3dMVM script for a 4x2x2x2 ANOVA without any GLTs (just looking at main effects and interactions for now). My output produced 14 sub-briks, all of which have a main effect or interaction listed with F after the label. When I am viewing my data, I should select the same sub-brik for the overlay and threshold, correct? I know that no other op
by
KristinBH
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AFNI Message Board