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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Philipp
May 25, 2023 02:05PM
Hi,

I have a question regarding scaling in the preprocessing using AFNI proc.
When preprocessing a run with a resting-state script using the following blocks 

-blocks despike tshift blur mask scale regress \

the .errts output file does not have a mean of 100 and it lacks the range from 0 to 200 (as the "scale" preprocessing block).
It seems that the .errts mean is 0, but how is the range defined?

Is the .errts still compareable across subjects, or do I have to again scale the preprocessed .errts output via 3dTnorm? I assume that running 3dTnorm on the errts is not advised, but I wanted to be 100% certain about this.

Thanks,
Philipp
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Subject Author Posted

Scaling in AFNI proc for the .errts resting-state output

Philipp May 25, 2023 02:05PM

Re: Scaling in AFNI proc for the .errts resting-state output

ptaylor May 25, 2023 02:24PM

Re: Scaling in AFNI proc for the .errts resting-state output

Philipp May 25, 2023 02:38PM

Re: Scaling in AFNI proc for the .errts resting-state output

ptaylor May 25, 2023 03:04PM

Re: Scaling in AFNI proc for the .errts resting-state output

Philipp May 26, 2023 03:51AM