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Morphologist : how to normalize native lengths?

Posted: Mon Jun 26, 2017 1:03 pm
by Mikha
Hi,

I am working on measures from Morphologist pipeline and I want to use native lengths as Maxdepth or hull junction length. It can be better than talairach normalization to find smaller statistic effects.
Somebody know how to normalize them?

Thank you,
M. Azilinon

Re: Morphologist : how to normalize native lengths?

Posted: Mon Jun 26, 2017 2:10 pm
by riviere
Hi,
Morphologist processes both normalized and native measurements, so both are available.
Otherwise you cannot normalize a length or a distance afterwards: it has to be calculated in the given space from points positions (because if the normalization transformation is anisotropic the distance should stretch differently in different directions).
Denis

Re: Morphologist : how to normalize native lengths?

Posted: Mon Jun 26, 2017 2:40 pm
by Olivier Coulon
Hello,
I am not sure that the question was about normalizing a distance afterwards with a spatial normalization transformation.
One would think that it is possible for instance to normalize distance-related measurements with a length related to brain size... (e.g. largest euclidean distance between two points in the brain ...). Anybody has any experience with that ?

Olivier