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
March 13, 2018 05:47PM
Cesar,

The rationale for dmBLOCK is that a varying duration across trials presumably leads to varying response magnitude as well as response duration. The underlying basis function is BLOCK. I'm not so sure how much difference it would make if SPMG1 is used as a basis function, but you may have to ask Bob to add such an option. Alternatively you could manually create those two regressors yourself using SPMG1.

Gang
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Subject Author Posted

Duration Modulation with SPMG1 instead of dmBLOCK

Cesar Caballero Gaudes March 12, 2018 05:19PM

Re: Duration Modulation with SPMG1 instead of dmBLOCK

gang March 13, 2018 05:47PM

Re: Duration Modulation with SPMG1 instead of dmBLOCK

RWCox March 13, 2018 07:15PM

Re: Duration Modulation with SPMG1 instead of dmBLOCK

Cesar Caballero Gaudes March 14, 2018 05:36AM

Re: Duration Modulation with SPMG1 instead of dmBLOCK

Bob Cox March 14, 2018 10:34AM