[Eeglablist] removing artifacts with ICA

[qiweijingwx]

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
 
2010/01/11



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