[Mne_analysis] DICS_wrong_hemisphere_reconstruction {Disarmed}

Eric Larson larson.eric.d at gmail.com
Wed Dec 2 12:05:10 EST 2020
Search archives:

        External Email - Use Caution        

>
> Do you have another idea where there could be a flip right/ left ? mri
> conventions, coordinates and so on
>

1. To check these I would use `plot_alignment` in MNE-Python to check to
make sure everything is defined properly. Then if you use the same
src/trans/bem in make_forward_solution it should all be correct.
2. It's possible we are hitting some rank bug, see for example
https://secure-web.cisco.com/1o_lH-k4rHSYPhDzjd__shBfyihVFumwSV_W9W_OMpoll5YYDcxtValRvb9okGVShJsvTRZCV6hb00YuaKjRtY-iOGJ3UoWZUpZ-sdLKjb4NlS51yYibeBLjxDpYR8YHYFgdj8D7b7UBs_NcHgjB2mGiF6YU_LykyrQMfZxUsLXBxZm5XvNZJoeOUimYbUdIFjPCJYD8x2jC1QNM1uPhqxnZsey0r8j7ToEQaxHBPbfQgZimyQvYW3T2JOGFQNGTSidhSMqzFkqKwTkLEIgm4ng/https%3A%2F%2Fgithub.com%2Fmne-tools%2Fmne-python%2Fpull%2F8594
3. You might need to use reduce_rank=True as in this example
<https://secure-web.cisco.com/13MsdCox5KdzEpkrHMoAukWFSeMSbQzGuM0nRfQFGr7oaJ8uyROq_2nFM41F8P2DmnxF03hvqeB8I0Ao6OUFluoTL9Mtka3zYJqHIp8K7eRUGxWXuR5BskgNzlfNwDJ6UK8oEb3tjXAaNlPBQy3X43EbHnN0_YKdHKGexmausx9AJqM_zI3M8iTdyon8qNz_IBnSjLgtOEpgAxgt2Uz4R7JQe4ebaLWv7xbMCT5XU6BZH953ICan7D2pyaeQVFeFQOgG_0jSTj5bNrIUrrEWNHg/https%3A%2F%2Fmne.tools%2Fdev%2Fauto_examples%2Finverse%2Fplot_dics_source_power.html%23sphx-glr-auto-examples-inverse-plot-dics-source-power-py>.
It's possible FT reduces rank by default and we do not, so make sure
parameters match.
4. Can you also try doing `real_filter=True` to see if it helps? We are
looking into orientation selection for the complex filters currently, it
seems like FT produces better results for the complex.

Eric
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20201202/ff97906e/attachment.html 


More information about the Mne_analysis mailing list