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 Chen
March 18, 2005 11:53AM
Mariko,

I am still confused with the difference of "baseline" and "fixation" task in your experiment. Which one is being used to model the baseline and drifting effect?

> given that we have one task that is 24 minutes long, is it
> OK to use only six minutes of baseline in the deconvolve
> or does baseline need to have the same number of TRs as
> every other task in the deconvolve?

Are you talking about the number of TR's that are devoted for modeling the baseline and drifting effect? There is no standard for this, I guess, but it would be nice if you can manage to allocate at least 20% of your total TR's for that.

Gang
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Subject Author Posted

stats for longer scans

Mariko March 17, 2005 12:09PM

Re: stats for longer scans

Gang Chen March 17, 2005 04:03PM

Re: stats for longer scans

Mariko March 18, 2005 09:18AM

Re: stats for longer scans

Gang Chen March 18, 2005 11:53AM

Re: stats for longer scans

Mariko March 19, 2005 01:32PM

Re: stats for longer scans

Gang Chen March 21, 2005 05:01PM

Re: stats for longer scans

Mariko March 24, 2005 09:37AM