<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Actually, while looking at it again, it doesnt provide the elekta headpositions, but creates position traces through dipolefitting. It's been a while but I recall this procedure wasn't that straightforward, producing shaky results. Perhaps someone in the list can point you in the right direction in terms of how to read in the elekta headpositions using ft_preproc.</div><div><br>On Sep 8, 2016, at 4:12 PM, Arjen Stolk <<a href="mailto:a.stolk8@gmail.com">a.stolk8@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div></div><div>Hi Robert,</div><div><br></div><div>Hopefully the following page is still accurate:</div><div><a href="http://www.fieldtriptoolbox.org/faq/how_can_i_visualize_the_neuromag_head_position_indicator_coils">http://www.fieldtriptoolbox.org/faq/how_can_i_visualize_the_neuromag_head_position_indicator_coils</a></div><div><br></div><div>And more generally:</div><div><a href="http://www.fieldtriptoolbox.org/example/how_to_incorporate_head_movements_in_meg_analysis">http://www.fieldtriptoolbox.org/example/how_to_incorporate_head_movements_in_meg_analysis</a></div><div><br></div><div>Hope that gets you started,</div><div>Arjen</div><div><br>On Sep 8, 2016, at 10:11 AM, Seymour, Robert (Research Student) <<a href="mailto:seymourr@aston.ac.uk">seymourr@aston.ac.uk</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p>Hi all,</p>
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<p>Just wondering whether anyone using an Elekta MEG system has managed to import the head position estimation logs generated by Maxfilter into Fieldtrip via the ft_preprocessing command? There must be a way of tricking the function into accepting the data
as an extra channel... My thinking is that it should ultimately be possible to use ft_regressconfound to address head movement right issues before ft_sourcestatistics without having to use Maxfilter's native head position correction.</p>
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<p>Many thanks,</p>
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<p>Robert Seymour (PhD Student, Aston Brain Centre)</p>
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