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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Ziad Saad
February 15, 2007 09:36AM
Greetings,

About differences in the bunching up business: It is only relevant when stimulus timing is different across subjects. Either for uncontrollable constraints on stimulus events such as when trial duration is determined by a subject's response, or because one decides to randomize the stimulus presentation orders within runs for one subject and across subjects.

It is OK to scale your regressors as long as the scale factor is the same for all subjects in a study. But I just don't recommend doing this.

cheers,
-z
Subject Author Posted

Waver peak problem?

Bonnie February 14, 2007 12:49PM

Re: Waver peak problem?

Giorgio Ganis February 14, 2007 01:05PM

Re: Waver peak problem?

Lisa T. Eyler February 14, 2007 02:05PM

Re: Waver peak problem?

Ziad Saad February 14, 2007 02:30PM

Re: Waver peak problem?

Bonnie February 14, 2007 02:48PM

Re: Waver peak problem?

Ziad Saad February 15, 2007 09:36AM

Re: Waver peak problem?

Stephanie McMains September 17, 2007 05:39PM

Re: Waver peak problem?

Gang Chen September 17, 2007 06:08PM

Re: Waver peak problem?

rick reynolds September 17, 2007 08:50PM

Re: Waver peak problem?

Colm Connolly February 15, 2007 07:14AM