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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
History of AFNI updates
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Peter,
When you mention Cluster Correction are you referring to the "clusterize" button on the GUI, or something else?
by
m.houston81
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AFNI Message Board
Hello!
I've performed a paired test via 3dMEMA and received the following warning:
++ Smallest FDR q [1 negative_minus_regulation:t] = 0.0417078
*+ WARNING: Smallest FDR q [3 QE:Chisq] = 0.671929 ==> few true single voxel detections
What does it mean that the Chi^2 has a high FDR while the FDR for the t-statistics are good enough?
Thank you!
by
m.houston81
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AFNI Message Board
Hello!
Group Level Analysis is fairly new to me, and although I have read some AFNI documentation regarding its use, there are still some concepts that I don't understand well enough. Below my questions I'll describe the paradigm that I'm using, to provide context.
1: What are the differences, if any, of p & q values in 1st level analysis versus GLA?
2: How strict must o
by
m.houston81
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AFNI Message Board
Gang Chen,
I apologize for the delayed response but thank you for your help! You've made AM2 make much more sense to me now and I appreciate it.
by
m.houston81
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AFNI Message Board
Hello all!
My name is Michael and I'm a new AFNI user. I've tried to search for some literature from AFNI regarding the use of AM2 for stim_types and understanding the output of AM2. I know that using AM2 gives you 2 regressors per condition (Beta for mean, and Beta for amplitude modulation), but I'm still unsure as to the statistical results of it.
My question is: When view
by
m.houston81
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AFNI Message Board