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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carolin31
February 08, 2022 06:31PM
Hello afni experts,

I would like to calculate the tSNR. The analysis I am working on is trying to extract CerebroVascular reactivity from resting state fMRI so the preprocessing of the data is a little different.
I motion correct and blur the data. Then I linear detrend and bandpass filter. And finally I run the regression which includes 6 motion regressors and .

My question is if I want to calculate the tSNR do I use the signal that is motion corrected and blurred (but not linear detrended and bandpass filtered) and divide this by the residuals from the regression?

Thank you very much for any help in advance!
Carolin
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calculation of TSNR before or after bandpass filter?

carolin31 February 08, 2022 06:31PM

Re: calculation of TSNR before or after bandpass filter?

rick reynolds February 09, 2022 05:28PM