[Mne_analysis] maxwell filtering 4D-neuroimaging/BTi data

[Maria Hakonen]

        External Email - Use Caution        

Thank you all for the answers!

The result images I sent in my previous mail were calculated using
ignore_ref=True.
I tried to remove bad channels before filtering but, unfortunately, this
didn't solve the problem.
Are calibration files needed if I only have magnetometer and not
gradiometer data? I think that I don't even have the calibration files.

However, I think that, as also Denis said, it is perhaps not that important
to maxwell filetr the data. I also managed to filter the data with another
filter that corresponds to maxwell filter and is previously used with
bti data. The main reason why I wanted to try maxwell was that aligning the
heads of the subject (i.e. destination option) would have been easy with
maxwell filter.

Best,
Maria


ma 3. jouluk. 2018 klo 21.02 Eric Larson (larson.eric.d at gmail.com)
kirjoitti:

>         External Email - Use Caution
>
> However, the data looks very noisy after filtering:
>>
>
> Does it look any better if you use ignore_ref=True in maxwell_filter?
>
> Eric
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