I have get the MTG Roi from an anatomical brain using the script below. This MTG cortical region running from the parietal lobe to the entire length of the temporal lobe through the middle temporal gyrus. But i need to get Angular gyrus from this cortical. How?
#############################
foreach type(“MTG 605”)
set ROI=(echo $type | awk '{print $1}')
set n=(echo $type | awk '{print $2}')
# foreach h(lh rh)
3dcalc -prefix lh_“$ROI”+tlrc.
-a ROIs_lh+tlrc.
-expr “step(equals(a,$n))”
end
##########################
Hi-
You would likely want to have a parcellation of it in some space.
If you had a map of it in some template space, you could align your subject(s) to it, and then apply the same transformation to your ROI to bring it to the individual’s space.
I don’t know if there is a parcellation from FreeSurfer of that ROI, for example, which would allow you to estimate a map of it from the subject’s own data, in their anatomical space.
There are also drawing tools in AFNI if you want to draw the ROI.
–pt
The Angular Gyrus is available under several atlases including Talairach Daemon, Eickhoff-Zilles Macro-label atlas and the Desai atlases in AFNI. You can use “whereami -show_atlas_code” to see all the regions by name for all atlases. See our class documentation for various ways to extract atlas regions from atlases using whereami, 3dcalc, 3dresample, … See slides 33-36 for examples:
https://afni.nimh.nih.gov/pub/dist/edu/latest/afni_handouts/afni11_roi.pdf