[MINC-users] sulcal probability map

[Trisanna Sprung-Much]

Hi there

I have generated a SPAM of a sulcus of interest (across 40 subjects) and am
using Matlab to find the voxel with the greatest overlap. However, when I
open the map in DISPLAY and go to this voxel coordinate it is showing a
voxel that does not have max colour. You will notice, however that the
maximum % is the same across Matlab and DISPLAY. Please see the snapshots
attached.

*The function I am using has the following steps:*

niak_read_minc
and then [max_val,ind] = max(vol(:));
[x,y,z] = ind2sub(size(vol),ind);

I then multiple the coordinates by a matrix to go from voxel to world.

Why would Matlab and DISPLAY be giving me different results? Any help would
be greatly appreciated.

many thanks

Trisanna Sprung-Much
Petrides Lab
--
Ph.D. Candidate
McGill University
Integrated Program in Neuroscience
Psychology