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 29, 2015 10:41AM
Hi,

What I did to have the number of distractors vary across trials was to combine both conditions into one stimulus file, so now it looks something like this

67*15 94*25 121*15 166*25 etc

Then I was able to run it without any problems, but this gives me the same result if I just model the two conditions separately and do a glt contrast +east -difficult.

Since I have never worked with parametric designs before, how could someone design a good parametric design? I've seen some papers where they use param design in working memory tasks such as the n-back test.

Thanks
Subject Author Posted

Parametric modulation

O.M. January 26, 2015 03:05PM

Re: Parametric modulation

gang January 26, 2015 06:18PM

Re: Parametric modulation

O.M. January 26, 2015 08:34PM

Re: Parametric modulation

gang January 27, 2015 12:20PM

Re: Parametric modulation

O.M. January 27, 2015 04:02PM

Re: Parametric modulation

gang January 28, 2015 10:42AM

Re: Parametric modulation

O.M. January 28, 2015 12:14PM

Re: Parametric modulation

gang January 28, 2015 01:04PM

Re: Parametric modulation

O.M. January 28, 2015 01:54PM

Re: Parametric modulation

O.M. January 29, 2015 10:41AM

Re: Parametric modulation

gang January 29, 2015 12:49PM