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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October 24, 2014 11:55AM
You are asking more from the data then the experiment
was designed for.

Using tents on a trial-by-trial basis is almost like
not modeling at all, just looking at the raw EPI data.
The model is just too flexible, and the stimulus
response periods would have to be almost completely
separate to avoid multi-collinearity. The response
periods overlap in your case as you know, certainly
evidenced by having 2151 TRs and 2400 regressors.

Even if this somehow ran, what do you plan to do with
2000 beta weights? What would the next step be?

- rick
Subject Author Posted

stimulus timing file in 3dDeconvolve

qy October 20, 2014 11:34AM

Re: stimulus timing file in 3dDeconvolve

Peter Molfese October 20, 2014 12:06PM

Re: stimulus timing file in 3dDeconvolve

qy October 20, 2014 02:47PM

Re: stimulus timing file in 3dDeconvolve

Peter Molfese October 20, 2014 03:06PM

Re: stimulus timing file in 3dDeconvolve

qy October 20, 2014 03:13PM

Re: stimulus timing file in 3dDeconvolve

Peter Molfese October 20, 2014 09:35PM

Re: stimulus timing file in 3dDeconvolve

qy October 21, 2014 12:15PM

Re: stimulus timing file in 3dDeconvolve

gang October 21, 2014 02:28PM

Re: stimulus timing file in 3dDeconvolve

qy October 21, 2014 03:01PM

Re: stimulus timing file in 3dDeconvolve

gang October 21, 2014 04:37PM

Re: stimulus timing file in 3dDeconvolve

rick reynolds October 22, 2014 08:45AM

Re: stimulus timing file in 3dDeconvolve

qy October 22, 2014 02:39PM

Re: stimulus timing file in 3dDeconvolve

rick reynolds October 22, 2014 04:20PM

Re: stimulus timing file in 3dDeconvolve

qy October 22, 2014 04:34PM

Re: stimulus timing file in 3dDeconvolve

qy October 22, 2014 05:12PM

Re: stimulus timing file in 3dDeconvolve

rick reynolds October 24, 2014 11:55AM