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November 13, 2019 09:11PM
Dear AFNI,

I'm using RetroTS.py to get cardiac regressors for each slice in a 4D dataset, from cardiac/respiratory data recorded while it was collected. This yields regressors with this naming scheme

<slice #, starting at 0>. <RVT 0-4> <Card0-Card3)

Our ultimate goal is to detect the slices where peaks of the cardiac response occurred, producing a binary time series for each slice. More concretely, we would take the output of RetroTS.py, e.g.

Output_File_Name.slibase.1D

and turn it into a #time points x #slices binary matrix. I already extracted the #time points x #regressors_per_slice matrix from that output, if that helps.

What is the best way of accomplishing this? I was told I might need to use lib_RetroTS/PeakFinder.py for that, but there is very little documentation for it...

thank you for your help!
Francisco
Subject Author Posted

getting binary regressors for peak of cardiac response

fpereira November 13, 2019 09:11PM