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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rick reynolds
April 25, 2023 04:17PM
Hi Zhengchen,

That is right, the timing does not need to be rounded, so using the 0.1 s resolution sounds good.

Yes, there will not be much difference between BLOCK(0.2,1) and BLOCK(1,1), though the peak of the latter will be close to that 0.8 s difference.

What is a typical range of durations?

That is right, if the median duration is about 0.2s, using dmUBLOCK(-0.2) would be reasonable, but it could also be -0.2000173. Personally, I tend to round the time. It look nicer, and it does not have to change every time you add a subject. Either way seems okay.

Note that those times (e.g., 0.2 in dmUBLOCK(-0.2)) should be constant across subjects.

- rick
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Subject Author Posted

Temporal resolution in event timing 1D file

Zhengchen Cai April 25, 2023 09:45AM

Re: Temporal resolution in event timing 1D file

rick reynolds April 25, 2023 04:17PM

Re: Temporal resolution in event timing 1D file

Zhengchen Cai April 26, 2023 09:46AM