 |
 |
Dear FSL-users, I have a question regarding the labels in the JHU ICBM-DTI-81 atlas. In my results fractional anisotrophy correlates with the Stroop-test (cognitive measure of interference) in the following structures : beo-04> atlasquery -a "JHU ICBM-DTI-81 White-Matter Labels" -m Maske_Stroop-FA.nii Unclassified:1.84697 Anterior limb of internal capsule L:36.9393 Anterior corona radiata L:55.6728 External capsule L:5.5409 As you can see, the atlas assigns a value to each structure and I found the follwing explanation about it: ... the atlas assigns a unique label, one of integer values from 0 to 50, to each voxel in the ICBM-DTI-81 space to indicate that the voxel belongs to one of 50 well-documented deep white matter tracts. First of all: If the values are from 0 to 50, why do I get a value of 55.6728 in the anterior corona radiata? Secondly: What is the right way of interpreting the values? Looking forward to an explanation! :-) Vera