Hi Matteo,
If you click the little ‘i’ next in the overlay toolbar, you can select an additional colour map for negative values under ‘Lookup table options’. The positive and negative ones are scalled symmetrically, so if you specify a min and max of 50 and 100, this will amount to -50 to -100 for the negative colour map.
Hope that helps,
Eelke
> On 1 Dec 2016, at 21:40, Matteo Respino <[log in to unmask]> wrote:
>
> Hi,
>
> sorry to bother
> I have a cluster in .nii image I'd like to visualize in FSLview.
> All the voxels within the cluster have negative value,
> how should I set the threshold?
> It basically covers with a white background at intensity zero my standard brain
>
> Thank you in advance fro any help you may give me
>
> --
> Matteo Respino, MD
> Resident in Psychiatry
> Visiting Research Fellow in Psychiatry
>
> Clinica Psichiatrica Universitaria
> Facolta' di Medicina e Chirurgia di Genova
> Largo Rosanna Benzi, Padiglione 32A
> Genova, 16100, Italia
> Weill Cornell Medicine
> 21 Bloomingdale Rd,
> White Plains, NY 10605
>
>
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