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 10, 2015 09:07PM
Hi Jen,

> 1) Is TENT a reasonable choice for this design?

It's a good choice if you want to increase the detection power especially when there are subtle HDR shape differences across condition, brain regions, subjects, and groups.

> 2) What parameters would make sense to use here?

By parameters do you mean the ones in TENT(b,c,n)? With b=0, you may choose an integer n so that n*TR covers at least 12 seconds.

> 3) How do I extract betas (for group analyses) using this function? If I understand TENT
> correctly, there will be a beta produced for each chunk of time in the HRF specified. If I
> want an "overall beta" (i.e., an estimate of the amplitude), is the only way to get this by
> asking for it using -iresp?

For group analysis, you may read the discussion in the following thread:

[afni.nimh.nih.gov]

Gang
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Using TENT for event-related design

jas2222 October 09, 2015 09:41AM

Re: Using TENT for event-related design

gang October 10, 2015 09:07PM