Anyone doing #psychophysiology studies (#HRV, #RSA, #skinConductance) have experience using data from more than one (#biopac) acquisition setup in a single study? Anything we should be careful about?

In #fMRI using images from different scanners in the same study is a major analysis challenge, but here we can either see breaths and (3-lead EKG) R peaks or not. Skin conductance seems like it might be more difficult, if e.g., amplifiers vary in drift.