Hi,
You should not use the pre-thresholded image as an input (thresh_zstat1).
Use a raw zstat image from the stats folder instead (zstat1).
All the best,
Mark
On 5 Jun 2013, at 17:17, Mark <[log in to unmask]> wrote:
> Hi,
>
> I've searched the archive still can't figure out the problem I encountered. I know that by default only 6 local maxima (LM) are reported per cluster. In one of my contrast (thresholded at z=2.0), I identified one big cluster, and Firefox reported 6 LMs:
>
> Cluster Index Z x y z
> 1 3.59 4 -64 48
> 1 2.69 10 -52 40
> 1 2.63 4 -46 46
> 1 2.54 10 -70 44
> 1 2.52 0 -76 38
> 1 2.51 18 -74 42
>
> I's like to get more LMs within this cluster. So I performed "cluster -i cope.feat/thresh_zstat1.nii.gz -t 2.0 -n 10 --mm" and the results were:
>
> Cluster Index Voxels MAX MAX X (mm) MAX Y (mm) MAX Z (mm) COG X (mm) COG Y (mm) COG Z (mm)
> 1 896 3.59 4 -64 48 5.76 -64 43.7
>
> Why only one LM was yielded?
>
> Thanks in advance.
>
> Mark
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