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  

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April 27, 2019 12:20PM
Hello,

I have a data set with 6 runs. In each run the participant are doing a task (resting*2, simulated standing *2, and simulated walking *2) . Participants complete these tasks either in the presence or absence of simulation (30 seconds of no stimulation followed by 30 seconds of stimulation in alternate blocks for the duration of each run). I have been asked to determine the difference in brain activity between tasks when there is no stimulation present. I was thinking about analyzing the first 30 seconds (no stimulation) of each of the two runs with the same task. Is this valid?

Thank you,
Gerome
Subject Author Posted

Estimating task-related activity by using first few TRs of a run

GMan April 27, 2019 12:20PM