Hi Holly,

Can you please try to launch it on the fsaverage subject that you have downloaded with the distribution? Just to see if you get the same error, because I don't seem to get an error neither with fsaverage nor with the average subject I just created.

Marie

On 20 août 09, at 15:50, Holly Bridge wrote:

...

We are trying to compute a pial_lgi surface for an average brain.

When we run mris_compute_lgi, we get this error at the mris_fill stage:

conforming output volume setting resolution for intermediate calculations to 1.0000 reading surface from lh.pial... reading group avg surface area 1015 cm^2 from file Reading in average area lh.pial.avg.area.mgh MatrixMultiply: m1 is null!

Please can you suggest what we need to do to make this work?

Thanks a lot,

Holly Bridge

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Dr Holly Bridge

Royal Society University Research Fellow FMRIB Centre Tel: +44-1865-222582 John Radcliffe Hospital Headington Oxford OX3 9DU Email: hb@fmrib.ox.ac.uk

Lecturer and JRF, New College

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