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

History of AFNI updates  

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March 15, 2010 05:50PM
Hi,

I'm trying to calculate the smoothness for a PET dataset so I can run 3dAlphaSim. What is the best way to estimate the smoothness for this kind of dataset? I tried running 3dFWHMx on the group analysis data but I got values of about 5.5 which is much lower than the smoothing kernel I applied to the data.

Given that I don't have time series data, I can't use Deconvolve to compute err_ts; is there a workaround you can recommend?

Thanks,

Jatin
Subject Author Posted

Alphasim for PET data

Jatin Vaidya March 15, 2010 05:50PM

Re: Alphasim for PET data

bob cox March 16, 2010 02:23PM

Re: Alphasim for PET data

Jatin Vaidya March 16, 2010 05:59PM

Re: Alphasim for PET data

Jatin Vaidya March 23, 2010 10:34AM

Re: Alphasim for PET data

bob cox March 23, 2010 01:43PM

Re: Alphasim for PET data

bob cox March 24, 2010 03:33PM

Re: Alphasim for PET data

Jatin Vaidya March 30, 2010 12:04PM

Re: Alphasim for PET data

bob cox March 30, 2010 03:15PM