[FieldTrip] channel type (EEG, EMG,etc.) and when to filter data
ivano_triggiani at yahoo.it
Fri Mar 16 09:42:10 CET 2012
I'm back to use fieldtrip after a long period, and now everything seems to work (I used .edf file and I had problem with trigger).
Now I have some questions, if someone would be so kind to help me:
1. I'd like to label my channel to select among EEG type, EMG type etc. because my acquire system labeled them all as EEG. When is it specified in cfg ? I can't find it! And if I can't, how can I exclude EMG,TRIGGER and EOG channels from ICA computation?
2. I have a lot of channel, but ICA gave me back just 33 of them. How can I proceed to obtain a correct ICA from my 56 channels?
3. is it wrong if I filter my data before ICA?
4. If I use ICA probably I can't use other source separation method (like BSS) to analyze my data, am I wrong?
if I post so much questions, but I'm back with fieldtrip and I want to improve my techniques.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the fieldtrip