[Eeglablist] removing artifacts with ICA

qiweijingwx qiweijingwx at 126.com
Mon Jan 11 02:11:53 PST 2010

Dear All,
I want using ICA to remove noise such as eye movement, muscle movement et al. in 
eeglab. I have two questions about this process. 
First, which seems better, running ICA to remove noise before or after epoch the data?
Second, if I want to remove artifacts before epoching data, but the file after merging is too big, could I remove noise separately in each file, then merge them together?
Thanks in advance!
best nancy

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