[Freesurfer] Atlas of primary motor and auditory cortex

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Hello Freesurfer experts,

I ran the recon-all command and got all the .label files for the segmentations of the cortical areas. However, I have some questions about the label for primary motor and auditory cortex.

- I found two types of labels associated with the primary motor cortex: lh.L_M1.label and lh.BA4a_exvivo.label. Are they both valid, and the lh.BA4a_exvivo.label segmentations are finer parcellation than the other one? - What's the primary auditory cortex .label file?

Thanks in advance! ________________________ Jingyi Wang Postdoctoral Scholar LEAP Neuro Lab Psychological & Brain Sciences University of California, Santa Barbara