Hi Marina

how did you create your average inflated surface? mris_inflate typically normalizes the scale of the inflated surface to have the same total surface area as the input surface (so for the less-folded inflated surface it has to become bigger). I guess you could try running it directly in your average subject surf dir to recreate the surface. Something like:

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

and see how that looks cheers Bruce On Fri, 17 Jan 2020, Marina Fernández wrote:

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Dear Freesurfer team, I run statistical analysis with the files in the average subject of a dataset (created with 5th order icosahedron tesselation).

In order to visualize the results, I open the inflated-surface and the pial-surface with tksurfer and I realize that inflated-surface of the average subject is smaller than the pial-surface. Is it normal? In the fsaverage5 subject these surfaces have a very similar size.

Even, when I load the results as an overlay in the inflated-surface, the results are shown smaller (more than the proportional size) than if I load the results in the pial surface (see attached image).

What can I do to generate an inflated figure with the results in the same size than in the pial surface?

Thank you in advance. Best regards, Marina.