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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insularcortex
May 07, 2018 05:02PM
Dear experts of AFNI,

I am using AFNI to analyze fmri data where monkey were training to watch movies.

The design was simple, 2.5min resting (no visual stimuls, no rewards) --> 5 min movies watching (with regular rewards) --> 2.5min resting
In total of 10mins, and many runs were collected.

I want to use the data to locate regions that "deactivated" (lower averaged BOLD response for example) during the movies-watching, compared with the resting period.
Since the stimulus was very long (5min), it seems not suitable to use the BLOCK(300) basis function to model the regression.

Is there any better basis function or other methods to model very long stimuli like movies?

Thanks!

Cirong Liu



Edited 5 time(s). Last edit at 05/07/2018 05:13PM by insularcortex.
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Subject Author Posted

basis functions for movie data

insularcortex May 07, 2018 05:02PM

Re: basis functions for movie data

RWCox May 08, 2018 12:04PM