diff --git a/src/99-appendices/08-coordinate-systems.md b/src/99-appendices/08-coordinate-systems.md index 2490c35174..7662958f13 100644 --- a/src/99-appendices/08-coordinate-systems.md +++ b/src/99-appendices/08-coordinate-systems.md @@ -37,7 +37,7 @@ units are expressed in mm. The coordinate systems below all relate to neuroscience and therefore to the head or brain coordinates. -$Please be aware that all data acquisition starts with +Please be aware that all data acquisition starts with "device coordinates" (scanner), which does not have to be identical to the initial "file format coordinates" (DICOM), which are again different from the "head" coordinates (for example, NIFTI). @@ -112,7 +112,7 @@ Restricted keywords for the `CoordinateSystem` field in the - `4DBti`: ALS orientation and the origin between the ears - `KitYokogawa`: ALS orientation and the origin between the ears - `ChietiItab`: RAS orientation and the origin between the ears -- Any keyword from the list of [Standard template identifiers](#standard-template-identifiers) +- Any keyword from the list of [Standard template identifiers](#standard-template-identifiers): RAS orientation and the origin at the center of the gradient coil for template NifTI images In the case that MEG was recorded simultaneously with EEG, the restricted keywords for @@ -138,7 +138,7 @@ Restricted keywords for the `CoordinateSystem` field in the For more information, see the [EEGLAB wiki page](https://eeglab.org/tutorials/ConceptsGuide/coordinateSystem.html#eeglab-hj-coordinate-system). -- Any keyword from the list of [Standard template identifiers](#standard-template-identifiers) +- Any keyword from the list of [Standard template identifiers](#standard-template-identifiers): RAS orientation and the origin at the center of the gradient coil for template NifTI images In the case that EEG was recorded simultaneously with MEG, the restricted keywords for @@ -182,7 +182,7 @@ Restricted keywords for the `CoordinateSystem` field in the is not aligned to ACPC, `ScanRAS` should be used. - Any keyword from the list of - [Standard template identifiers](#standard-template-identifiers) + [Standard template identifiers](#standard-template-identifiers): RAS orientation and the origin at the center of the gradient coil for template NifTI images ## Image-based Coordinate Systems