[FieldTrip] Imprinting generic head model electrode positions from ANT Neuro xensor in scalp mesh
Schoffelen, J.M. (Jan Mathijs)
janmathijs.schoffelen at donders.ru.nl
Mon Feb 5 08:59:27 CET 2024
Hi Guillermo,
If you say: ‘generic’, you probably meant ’subject-specific’? Either way, if there’s a way that you can get the 3D electrode positions into a representation that FieldTrip knows as an ‘elec’-structure (did you check whether ft_read_sens works for you?), then you can use the function ft_electroderealign. I think there should be sufficient documentation in the function’s help, and on the website to get you started.
Good luck
Jan-Mathijs
On 2 Feb 2024, at 20:38, Nunez Ponasso, Guillermo via fieldtrip <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>> wrote:
Dear Fieldtrip community,
My name is Guillermo Nunez Ponasso, and I am a postdoc at the Worcester Polytechnic Institute, working with Prof. Sergey Makaroff's team.
Currently, I am working with EEG recordings from 256-channel ANT Neuro caps. The data includes the EEG time series, and geometric data in the form of a generic mesh (consisting of nodes and triangles) with nodes given by electrode positions, which were digitized using ANT Neuro xensor. To be more precise, I have geometric data of the form
<electrode_label> : <x_coord> <y_coord> <z_coord>
for each of the 256 channels, and a list of triangles given by electrode labels.
I am interested in imprinting/coregistering these generic positions to appropriate positions on each patient's scalp mesh from MRI. Is there a way to achieve this using FieldTrip?
Any help is much appreciated.
Best,
Guillermo
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