I am trying to resample some surface overlays from fsaverage to fsaverage_sym surface. I have used the following command:

mri_surf2surf --srcsubject fsaverage --srcsurfreg fsaverage_sym.sphere.reg --trgsubject fsaverage_sym --trgsurfreg sphere.reg --hemi lh --sval lh.wang15_mplbl.mgz --tval lh.wang15_mplbl_fsaverage_sym.mgh

However, the data in the overlay has changed. The original overlay contains whole values, whereas the resampled overlay on _sym surface contains decimal numbers also. I wondered if you could advise me on whether the command I am using is appropriate?

Mason T Wells, MSc

PhD student

School of Optometry and Vision Sciences

& Cardiff University Brain Research

Imaging Centre (CUBRIC), School of Psychology

Cardiff University

Cardiff

CF24 4HQ

Email: WellsMT1@cardiff.ac.uk

Tel: 02920 879628

Web: Cardiff University webpage

Mason T Wells, MSc

Myfyriwr PhD

Yr Ysgol Optometreg a Gwyddorau’r Golwg

& Canolfan Ymchwil Delweddu’r Ymennydd Prifysgol Caerdydd (CUBRIC), Yr Ysgol Seicoleg

Prifysgol Caerdydd

Heol Maindy

Caerdydd

CF24 4HQ

E-bost: WellsMT1@caerdydd.ac.uk

Ffôn: 02920 879628