Hi all,
I'm currently trying to do get brain stem signal with FSL's PNM toolbox. So far I could successfully generate PNM regressors with ECG and respiration data and model it. Unfortunately, one participant's ECG data was severely contaminated by the scanner noise, so the respiration data is the only physio data that I can use for PNM. Given the situation, I wonder whether I can generate physio regressor in PNM only with respiration data or not. Otherwise, is it okay to put time series raw respiration data into the design matrix instead of using PNM regressor.
I would appreciate any ideas about this issue.
Many thanks,
TH
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