<p><span style="padding: 3px 10px; border-radius: 5px; color: #ffffff; font-weight: bold; display: inline-block; background-color: #ff0000;"> External Email - Use Caution </span></p><p></p><div><div dir="auto">First they are discarded as you project to the low rank coordinate system of maxfilter. After this the SSPs are not valid any longer. Question : do you take into account bad channels before computing maxfilter? It sounds as if something is not right with its computation.</div></div><div dir="auto">Question 2: if your data looks good, do you need maxfilter then in the first place?</div><div dir="auto"><br></div><div dir="auto">Denis</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue 16 Jul 2019 at 15:32, Marijn van Vliet <<a href="mailto:marijn.vanvliet@aalto.fi">marijn.vanvliet@aalto.fi</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> External Email - Use Caution <br>
<br>
Dear MNE users,<br>
<br>
can anyone enlighten me a little about the three 'default' projections <br>
PCA-mag-v1, PCA-mag-v2 and PCA-mag-v3. Where do they come from and why are they <br>
"discaded" by the maxfiltering process? My mags look pretty clean with them <br>
applied, but after maxfiltering, they look much worse, similar to not applying <br>
the PCA projections.<br>
<br>
best,<br>
Marijn.<br>
<br>
<br>
-- <br>
Marijn van Vliet<br>
Postdoctoral Researcher<br>
Department of Neuroscience and Biomedical Engineering<br>
Aalto University, Finland<br>
<br>
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