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
November 19, 2009 04:15PM
Your option 2) seems reasonable to me. Or you may further differentiate the incorrect trials between tasks A and B if you believe the brain may respond differently between the two types of incorrect trials.

You may also consider using BLOCK(4,1) instead of GAM since the stimulus duration is longer than one TR. The impulse response function (with option -iresp) from 3dDeconvolve would be boring when you use GAM or BLOCK(d,p) as your basis function since that's just a standard curve.

HTH,
Gang
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Accounting for performance

Erin November 19, 2009 02:44PM

Re: Accounting for performance

Gang Chen November 19, 2009 04:15PM