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kim
September 03, 2007 12:19PM
Hi AFNI gurus,

I have an event-related design, and I have some ROIs drawn. So far I have extracted the averaged ROI signal from different experimental conditions using 3dmaskave and compared them. What I would like to try next is extracting the ROI signal averages _lag by lag_ over the course of the event. So I'd like to have a signal average for each ROI x condition x lag.

I took a look through the AFNI site trying to find out how to do this, but the only thing I can find is how to extract ROI signal over the timecourse of the scan, which isn't what I'm looking for - I'd like the average signal, spatially averaged over the ROI, temporally averaged over all the events of that experimental condition, but lag by lag for that averaged event. Is that possible?

I hope that makes sense! Thanks very much!

kim
Subject Author Posted

ROI analysis lag by lag?

kim September 03, 2007 12:19PM

Re: ROI analysis lag by lag?

Gang Chen September 05, 2007 10:22AM

Re: ROI analysis lag by lag?

kim September 13, 2007 04:19PM

Re: ROI analysis lag by lag?

David Perlman September 05, 2007 06:01PM