[FieldTrip] EEG source reconstruction with EasyCap-128

[Julian Keil]

Dear Ayaka,

If I remember correctly, EasyCap provided the XYZ-coordinates in the
packaging of the electrode caps (i.e., a printed table). Unfortunately,
they don't list the coordinates on their website anymore. If you don't have
the cap packaging anymore, I suggest writing to the - usually very
helpful - support to ask for the coordinate file.

Best,

Julian

On Mon, Feb 17, 2025 at 8:04 PM Ayaka Hachisuka via fieldtrip <
fieldtrip at science.ru.nl> wrote:

> Dear Fieldtrippers,
>
> I'm attempting EEG source reconstruction following Fieldtrip tutorials.
>
> However, I think I'm missing the electrode file for my EEG Easycap-128
> channel layout. I have a* .lay* file, but not* .elc *(with the x, y, and
> z electrode positions). I tried using the standard_1020.elc file, but this
> has an insufficient channel count. Would anyone mind sharing this with me,
> or am I missing a way to generate this myself using the .lay file?
>
> Related thread here:
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fpipermail%2Ffieldtrip%2F2014-January%2F033337.html&data=05%7C02%7Cfieldtrip%40science.ru.nl%7C371e9dc178454a47cedc08dd4fec3b96%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638754598652022300%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C60000%7C%7C%7C&sdata=N0sEn7i2%2FyrpcpGb%2Fq2%2Bu7pvbCZuQKmYEbHEsE%2F93X0%3D&reserved=0
> <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fpipermail%2Ffieldtrip%2F2014-January%2F033337.html&data=05%7C02%7Cfieldtrip%40science.ru.nl%7C371e9dc178454a47cedc08dd4fec3b96%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638754598652041901%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C60000%7C%7C%7C&sdata=PATjVPTmob7URXGbCRabYUZxO6hEiD1OiptUfWtvJOk%3D&reserved=0>
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> Thank you so much.
>
> Best,
> Ayaka
>
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