I am studying the source estimation based on ERP. Each trial had a baseline signal of 0.5s, followed by a stimulation of 5s. No other noise signals were collected in the experiment. For a certain subject, can I
(1) extract the baseline signals of all trails, (2) splice all these baseline signals together into a file, and then (3) import the file into brainstrom to calculate the noise covariance?
I would appreciate your reply.