Morphologist : how to normalize native lengths?

Questions about BrainVisa usage and installation

Moderators: riviere, denghien

Mikha
Posts: 7
Joined: Fri Jun 16, 2017 11:47 am

Morphologist : how to normalize native lengths?

Postby Mikha » Mon Jun 26, 2017 1:03 pm

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

User avatar
riviere
Site Admin
Posts: 1358
Joined: Tue Jan 06, 2004 12:21 pm
Location: CEA NeuroSpin, Saint Aubin, France
Contact:

Re: Morphologist : how to normalize native lengths?

Postby riviere » Mon Jun 26, 2017 2:10 pm

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

User avatar
Olivier Coulon
Posts: 176
Joined: Fri Feb 27, 2004 11:48 am
Location: MeCA research group, Institut de Neurosciences de La Timone, Marseille, France
Contact:

Re: Morphologist : how to normalize native lengths?

Postby Olivier Coulon » Mon Jun 26, 2017 2:40 pm

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
Olivier Coulon
Institut de Neurosciences de La Timone,
Aix-Marseille Université,
Marseille, france
https://meca-brain.org


Return to “BrainVISA”

Who is online

Users browsing this forum: No registered users and 2 guests