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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MundayNB
April 30, 2018 02:12PM
In my experimental design, there are two trial types and we want to time-lock the stimulus to the TR. To create the stimulus schedule, I am running RSFgen in a similar way as described in: [afni.nimh.nih.gov]. I ran RSFgen specifying 50 'A' trials, 50 'B' trials, and 100 'rest trials'.

When using RSFgen in this way, there are often times when two (or three, or four) trials end up being back-to-back with no rest trials between them; in effect, you occasionally get an ISI=0. Is this not problematic from the perspective of deconvolving the HRF if you end up having trials that are back-to-back like that on occasion? Thank you for your help in clarifying this matter.
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No rest in between trials with RSFgen?

MundayNB April 30, 2018 02:12PM

Re: No rest in between trials with RSFgen?

RWCox May 01, 2018 03:26PM

Re: No rest in between trials with RSFgen?

ptaylor May 01, 2018 08:44PM

Re: No rest in between trials with RSFgen?

MundayNB May 02, 2018 06:14PM

Re: No rest in between trials with RSFgen?

rick reynolds May 03, 2018 02:36PM