[Eeglablist] Does pop_clean_rawdata depend on the type of high-pass filt (0.1 or 1 Hz)?

Bianca Monachesi bianca.monachesi at unitn.it
Mon Jul 26 04:04:01 PDT 2021


Dear EEGlab users,

I used "pop_clean_rawdata" to find and remove bad channels (after filtering
step) but the number of channels found on a signal high-pass filtered at 1
hz is different from the number of channels found on a signal filtered at
0.1 hz. Does it make sense? Which is the relationship between filtering and
the function clean_rawdata?

This unbalance in the number of channel can be insidious since according to
Mokoto's preprocessing pipeline (
https://sccn.ucsd.edu/wiki/Makoto%27s_preprocessing_pipeline), the ICA
performed on a signal high-pass filtered at 1 Hz  should be attached on a
signal high-pass filtered at 0.1 Hz, considering that in both signals the
number of channels removed and interpolated is the same...

Thank you in advance for any kind of help or explanation of the problem.

Best,

bm



-- 
Bianca Monachesi, PhD
Department of Psychology and Cognitive Sciences
University of Trento
Corso Bettini 31, Rovereto, TN (Italy)


More information about the eeglablist mailing list