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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kickan
November 10, 2014 08:58AM
I would like to analyze event related fMRI data, where the duration of each event differs. I have tried to read the help texts of afni_proc.py and 3dDeconvolve. My current solution looks like this, is it OK?

Part of call to afni_proc.py

-regress_stim_types IM
-regress_stim_times events.txt
-regress_stim_labels events
-regress_basis 'dmBLOCK'
-regress_opts_3dD
-stim_times_IM
-gltsym 'SYM: events' -glt_label 1 activity

events.txt would look something like

20:3 30:4 40:2 47:3

meaning 3 seconds of activation after 20 seconds, 4 seconds of activation after 30 seconds, 2 seconds of activation after 40 seconds, 3 seconds of activation after 47 seconds, I don't want any amplitude modulation.
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Subject Author Posted

Event related design with different durations

kickan November 10, 2014 08:58AM

Re: Event related design with different durations

rick reynolds November 10, 2014 10:12AM

Re: Event related design with different durations

kickan November 10, 2014 10:24AM

Re: Event related design with different durations

rick reynolds November 10, 2014 10:31AM

Re: Event related design with different durations

kickan November 10, 2014 10:44AM