Could anyone help me deal with error in integrating Freesurfer with Surfstat ? 

Because "MNI object" data was not available not like as written in the web documentation (http://www.math.mcgill.ca/keith/surfstat/), I used my own patient's MRI data with Freesurfer software. 

(CIVET software is also inaccessible to me.)

After Recon-all , I employed the files "lh.thickness and lh.pial "  from "surf" folder as input. (As written in "VIEWING DATA" Section in the online document)

I ran the command : 

SurfStatReadSurf('/Users/zhau/Dropbox/subj7442103/surf/lh.thickness') 

And the error : 

Unable to read /Users/zhau/Dropbox/subj7442103/surf/lh.thickness, magic = 16777215

Error in SurfStatReadSurf1 (line 20)

if nargin<2

Output argument "surf" (and maybe others) not assigned during call to

"/Applications/MATLAB_R2013a.app/toolbox/surfstat/SurfStatReadSurf1.m>SurfStatReadSurf1".

Error in SurfStatReadSurf (line 69)

    [s,ab]=SurfStatReadSurf1(filenames{1,j},ab,numfields1);

It seems I do not understand the structure of input file. 

How could I solve this?

Thanks in advance.

Kyoo Ho Cho