[FieldTrip] Source reconstruction of combined EEG-MEG data

[Schoffelen, J.M. (Jan Mathijs)]

For reference:

Hello Jan-Mathijs,

Thank you very much for your reply. My apologies for not referring to the example code correctly. When I searched for the page on Google, Google indicated that the date of the page was December 4, 2024, hence I thought that it was published last month.

I am able to get my own code running with ft_prepare_vol_sens, so I think you are right.

Best regards,
Kenneth

On Mon, Jan 13, 2025 at 7:03 PM Schoffelen, J.M. (Jan Mathijs) via fieldtrip <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>> wrote:
Hi Kenneth,

Please note that the documentation on the category ‘examples’ consist of a collection of code/procedural descriptions that worked once-upon-a-time. They are not guaranteed to be backward compatible with a further evolved codebase.

So, your statement ‘FieldTrip recently released some new documentation’  is not fully appropriate. The example you refer to, is actually already quite old; what may have changed is the name of the page (which may make it look new), the content hasn’t changed. We are in the process of making some important changes to the website (basically aimed at improving the browsing experience), and for that reason we needed to refactor a bit the names of the webpages under the hood.

Regarding your question: I think that something has gone wrong at some point when we executed some housekeeping operations on the content-text-files that contain the information on the website. I believe the proper function call should be ft_prepare_vol_sens, rather than ft_prepare_headmodel_sens.

Best wishes,
Jan-Mathijs


On 13 Jan 2025, at 12:51, Kenneth Shinozuka via fieldtrip <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>> wrote:

Hello,

I am analyzing some simultaneously acquired EEG-MEG data. I saw that FieldTrip recently released some new documentation about this:

https://www.fieldtriptoolbox.org/example/sourcerecon_meeg/<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.fieldtriptoolbox.org%2Fexample%2Fsourcerecon_meeg%2F&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Ce45cb2f6fb63419465f008dd3467b720%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638724342240922257%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=lnqoMNj5h3ki8pbvIgYbkErpUbxvqQ5myMn0kk9cUkY%3D&reserved=0>

The provided code uses a function called “ft_prepare_headmodel_sens,” which does not appear to exist. I get the error: “Unrecognized function or variable ‘ft_prepare_headmodel_sens.’” Is there another function that you intended to use?

Best regards,
Kenneth
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--
Kenneth Shinozuka
Harvard College '20 | BA in Neuroscience
Oxford University '24 | PhD in Psychiatry

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