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

History of AFNI updates  

Previous Message Next Message
Message List New Topic Print View
|
rick reynolds
March 14, 2022 12:02PM
Hello,

Note the AM1 with dmUBLOCK will indeed result in both varying heights and shapes for individual events, if that is what you are asking about. The BLOCK basis function gets convolved with boxcars of the varying durations, which will result in both of those differences. The BLOCK basis function does not have an undershoot though, as you show in the images.

The -polort default is 1 + floor(run_length/150 (time in seconds)), also applied by afni_proc.py (unless otherwise specified by the user).

What is the range of stimulus duration applied? Consider:

timing_tool.py -multi_timing Ant*.1D -multi_show_duration_stats


- rick
Reply Quote
RSS
Subject Author Posted

3dDeconvolve HDR of variable epoch? (amplitude + duration modulation) Attachments

afni_user_xiy March 12, 2022 01:12PM

Re: 3dDeconvolve HDR of variable epoch? (amplitude + duration modulation)

rick reynolds March 14, 2022 12:02PM

Re: 3dDeconvolve HDR of variable epoch? (amplitude + duration modulation)

afni_user_xiy March 14, 2022 12:50PM

Re: 3dDeconvolve HDR of variable epoch? (amplitude + duration modulation)

rick reynolds March 15, 2022 06:11PM

Re: 3dDeconvolve HDR of variable epoch? (amplitude + duration modulation)

afni_user_xiy March 16, 2022 12:27PM