Hi Marina

for the lower res fsaverage subjects you probably want to decrease the number of iterations of the inflation. For fsaverage6 you could try:

mris_inflate -n 5 lh.smoothwm lh.inflated.new

it should be just a min or two so you can try different values for the -n switch

cheers Bruce

On Wed, 15 Jan 2020, Marina Fernández wrote:

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Dear Freesurfer team, I created the FS average subject of the same dataset with 5th and 6th order icosahedron tesselation using the following commands: make_average_subject --fsgd fsgd.txt --ico 5 --out avg_subject_ico5 make_average_subject --fsgd fsgd.txt --ico 6 --out avg_subject_ico6

When I load the inflated surface of the avg_subject_ico5 with tksurfer , it has a oval shape while when I load the avg_subject_ico6 it seems to be a normal shape. Please, see attached image.

Thank you in advance.

Best wishes, Marina.