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MEG source reconstruction with Brainstorm - Canada MEG ...

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Pre-processing Cleaning<br />

• Two categories of artifacts:<br />

– Well defined, reproducible, short, frequent:<br />

• Heartbeats, eye blinks, stimulator<br />

• Unavoidable and frequent: we cannot just<br />

ignore them<br />

• Can be modeled and removed from the signal<br />

efficiently<br />

– All the other events that can alter the<br />

recordings:<br />

• Movements, building vibrations, metro<br />

nearby…<br />

• Too complex or not repeated enough to be<br />

modeled 14

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