Talairach coordinates in different AFNI versions.

AFNI Message Board
1

Hello,
Recently I encountered a problem about Talairach coordinates in different AFNI versions. The brain region of the same coordinates is different using “where am I” in different versions.
For example:
The Version AFNI_18.3.15 ‘Augustus’ in linux_ubuntu_16_64:
Talairach coordinates: (-38,-14,29) , the brain region is “right middle frontal gyrus”.
The Version AFNI_19.0.25 ‘Tiberius’ in linux_ubuntu_16_64:
Talairach coordinates: (-38,-14,29) , the brain region is “right inferior frontal gyrus”.

Any guidance is very much appreciated!

Best,
Danny

2

The order for the default atlas lists has changed to prioritize more recent atlases like the HCP atlas and the Brainnetome atlas and to move the Talairach daemon down the default list. Different atlases report different regions at any particular coordinate.