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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gang
October 23, 2018 02:28PM
> In a separate set of analyses, we will want to keep data for the whole run in the model (meaning we will not be estimating each trial separately).

There are two approaches to handling reaction time: one is to treat it as trial duration, and the other is to consider it as a modulation variable. There is no consensus in the field as to which is more preferable.

If you go with the former approach, I suggest dmUBLOCK(x) instead of dmBLOCK so that you're forced to decide exactly what you want to get out of the analysis by controlling the interpretation of the output: which trial duration do you want to associate with as for the BOLD response magnitude?

Gang



Edited 1 time(s). Last edit at 10/23/2018 02:31PM by Gang.
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3ddeconvolve with AM2

heatherb October 18, 2018 01:54PM

Re: 3ddeconvolve with AM2

heatherb October 18, 2018 02:28PM

Re: 3ddeconvolve with AM2

gang October 21, 2018 06:49PM

Re: 3ddeconvolve with AM2

heatherb October 22, 2018 03:53PM

Re: 3ddeconvolve with AM2

gang October 22, 2018 06:07PM

Re: 3ddeconvolve with AM2

heatherb October 22, 2018 07:05PM

Re: 3ddeconvolve with AM2

gang October 23, 2018 02:28PM