How can you obtain RAS coordinates for an inflated surface when you have vertex #?

I am using the function read_surf('lh.inflated') to find the coordinates of some electrode contacts located in the left insula. However, when I plot the coordinates using plotPialSurf (iElVis), these locations are completely off (i.e., far outside from the insula).

I don't understand what is going wrong.

Any possible explanation?

Thanks in advance!

Giulia

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