From a66a8884d699032c3453f4d33a96c0d3dfba6622 Mon Sep 17 00:00:00 2001 From: Stefan Appelhoff Date: Thu, 23 Apr 2020 20:06:22 +0200 Subject: [PATCH] FIX: remove BESA from list of restricted keywords --- src/99-appendices/08-coordinate-systems.md | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/src/99-appendices/08-coordinate-systems.md b/src/99-appendices/08-coordinate-systems.md index bc6807a038..8b3f3afa1c 100644 --- a/src/99-appendices/08-coordinate-systems.md +++ b/src/99-appendices/08-coordinate-systems.md @@ -71,18 +71,11 @@ detailed extensive descriptions of these EEG coordinate systems on the Restricted keywords for the `XXXCoordinateSystem` field in the `coordsystem.json` file for EEG datasets: -- `BESA`: Although natively this is a spherical coordinate system, the - electrode positions should be expressed in Cartesian coordinates, with a RAS - orientation. The X axis is the T8-T7 line, positive at T8. The Y axis is the - Oz-Fpz line, positive at Fpz. The origin of the sphere fitted to the - electrodes is approximately 4 cm above the point between the ears. - - `Captrak`: RAS orientation and the origin between the ears Note that the short descriptions above do not capture all details, There are detailed extensive descriptions of these EEG coordinate systems on the -[FieldTrip toolbox web page](http://www.fieldtriptoolbox.org/faq/how_are_the_different_head_and_mri_coordinate_systems_defined) -and on the [BESA wiki](http://wiki.besa.de/index.php?title=Electrodes_and_Surface_Locations#Coordinate_systems). +[FieldTrip toolbox web page](http://www.fieldtriptoolbox.org/faq/how_are_the_different_head_and_mri_coordinate_systems_defined). ## iEEG Specific Coordinate Systems