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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January 12, 2021 02:35AM
Yes. To be precise:

- Take the power spectrum of fMRI signal (FFT ==> 3dPeriodogram)
- Smooth it with a Hamming window of 15/11/7 (not sure which one to use yet)
- Plot it with their respective frequencies
- Take logarithms of power spectrum and the frequencies to make it more linear-ish
- Fit a linear regression line to the logarithms
- The slope of that line is power-law exponent.

Like this paper: [www.hindawi.com]
Subject Author Posted

Length of rest and task?

duodenum January 09, 2021 04:42AM

Re: Length of rest and task?

ptaylor January 11, 2021 11:45AM

Re: Length of rest and task?

duodenum January 12, 2021 02:35AM

Re: Length of rest and task?

duodenum January 12, 2021 06:07AM

Re: Length of rest and task?

ptaylor January 12, 2021 12:06PM

Re: Length of rest and task?

duodenum January 12, 2021 02:01PM

Re: Length of rest and task?

ptaylor January 12, 2021 04:39PM

Re: Length of rest and task?

duodenum January 13, 2021 11:04AM

Re: Length of rest and task?

ptaylor January 19, 2021 03:39PM

Re: Length of rest and task?

duodenum January 20, 2021 04:37AM