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neuroelf:neuroelf_brainvoyager

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neuroelf:neuroelf_brainvoyager [2016/02/16 13:47]
lydia.gibson
neuroelf:neuroelf_brainvoyager [2016/03/03 14:19] (current)
lydia.gibson [VOIs]
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 ===== VOIs ===== ===== VOIs =====
  
-As described above, NE only applies interpolation //after// clusters/​VOIs have been defined. This is why VOIs that were created in NE look like mosaics when displayed ​in BrainVoyager. In addition, due to different coordinate systems NE clusters/​VOIs are shifted when opened ​in BrainVoyager. The function //nevois_addvoxels.m// (see Dropbox\DAG\Sources\bv_umg\Lydia_fmri_microstim 20151210takes care of both issues and allows you to display NE clusters ​in BrainVoyager ​properly. **Important:​** If you want to look at a corresponding VMP, you must disable interpolation in the Volume Maps tab.+VOIs that were created in NE look like mosaics when displayed in BrainVoyager. The function //ne voi_addvoxels.m// (see Dropbox\DAG\Sources\bv_umg\_4NeuroElfadds the missing voxels. When input shift_vois is set to '​noshift'​ (default) the resulting VOIs will fully overlap with the VMP voxels they were derived from. When setting shift_vois to '​shift'​ the resulting VOIs will be shifted by 1 voxel in order to capture the actual VTC voxels they belong to. This may be important because NE can only extract time courses from original VTC voxels. 
 + 
 +Background: There is an issue with BrainVoyager ​VTC voxel time courses and different time course extraction methods in NE (vtc.VOITimeCourse vs. vtc.VOITimeCourseOrig). 
 + 
 +**Important:​** If you want to look at the VOIs with a corresponding VMP, you must disable interpolation in the Volume Maps tab in BrainVoyager.
neuroelf/neuroelf_brainvoyager.txt · Last modified: 2016/03/03 14:19 by lydia.gibson