Export of surface: Via the first option one can export a BrainVoyager surface file (mesh)(*.srf) to GIFTI (*.surf.gii).
When exporting a BrainVoyager surface file via the giftiplugin, the vertices and triangles are exported. The intent code is for the vertices set to "NIFTI_INTENT_POINTSET" and for the triangles to "NIFTI_INTENT_TRIANGLE".
The extension for the GIfTI surface file will become *.surf.gii.
Exported versions: 3 and 4 (when exporting from disk) or any version (when the file is opened in BrainVoyager).
For an example, see the figure below.
Export of time course: With the second option a BrainVoyager mesh time course (*.mtc) can be exported to GIFTI (*.time.gii). It might be necessary to choose the option to load the mesh time course in memory when linking the *.mtc to the surface in BrainVoyager.
A mesh time course has one vector per vertex (or node) in the mesh. The order of the data points in the mesh time course file corresponds to the order of the vertices in the surface file.
The intent for the mesh time series will be set to "NIFTI_INTENT_TIME_SERIES". The extension for a GIfTI mesh time course file will become *.time.gii.
Exported MTC file versions: version 1 (from disk) or currently open (any version).
Description | Code in BrainVoyager | Value range | Intent name |
T-test | 1 | -10,000:10,000 | NIFTI_INTENT_TTEST |
Curvature | 1 | -10,000:10,000 | NIFTI_INTENT_SHAPE |
Correlation | 2 | -1:0:1 | NIFTI_INTENT_CORRELATION |
Cross-correlation | 3 | 0:1 | NIFTI_INTENT_CORRELATION |
F-test | 4 | -10,000:10,000 | NIFTI_INTENT_FTEST |
Z-score | 5 | -3,43:3,43 | NIFTI_INTENT_ZSCORE |
chi-square | 14 | - | NIFTI_INTENT_CHISQ |
beta | 15 | - | NIFTI_INTENT_BETA |
Exported file versions: 3, 4 and 5 (when exporting from disk) or any version (when exporting currently open file).
Latest update of this page: December 16, 2010