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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Dan
November 01, 2018 01:30PM
Hello,

I have extracted WM and CSF signal prior to scaling my data, which I plan to use in 3dDeconvolve. Currently, the CSF units are in the 4400 units range, and the WM is in the 5500 units range. Given that the signal of my scaled data is around 100 units, would the large discrepancy in signals cause any potential issues? I noticed this thread (https://afni.nimh.nih.gov/afni/community/board/read.php?1,142689,142689#msg-142689), which had the same issue, but since my data has larger signal differences, I'm unsure if that will be a problem.

Thanks!
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Subject Author Posted

Scaled vs non-scaled data in regression

Dan November 01, 2018 01:30PM

Re: Scaled vs non-scaled data in regression

rick reynolds November 13, 2018 09:54AM

Re: Scaled vs non-scaled data in regression

Dan November 28, 2018 09:06AM