I applied the SSP projectors because I handed over the files to a student to complete the pipeline. She did not have the signal processing toolbox available to work with, and could not successfully perform the ICA. I wanted her to learn all the steps, but be able to work with cleaned data. Hence why I did not follow your recommended pipeline.
ICA+bandpass vs. bandpass+ICA would produce very different results.
But you can set the frequency band upon which to perform ICA... You have piqued my curiosity now.
As explained...visualization filters are for visualization only...
Yes. Exactly. It was precisely because of this that we were able to track down this bug.
If the filters were correctly applied...
This is entirely the point of the post. Regardless if the pipeline was the recommended one or not doesn't change the fact that bandpass filtration does not work if you try to apply it to a file where the "apply SSP projectors" has been performed. This does not make sense. A filter should not care what has been done to the data. It should still be able to filter. However, it clearly does not. No error message is shown. But the pictures we posted show clearly that the filtration does not happen. The visualization filters work fine, but filtration processing does not. Has no one encountered this issue when working with data where the "apply SSP projectors" has been performed? It seems like something you guys should be made aware of, regardless of whether the pipeline is standard or not. I have not tried playing with it further, but what if TF decomposition also doesn't work correctly on such files. That would be a serious problem no?