Search found 7 matches

by Mikha
Wed Jul 05, 2017 3:38 pm
Forum: BrainVISA
Topic: Refsurface of graph fold
Replies: 5
Views: 15120

Re: Refsurface of graph fold

Hi,
thank you for your answer. It is what I have done this afternoon. I though that an automatical process could give us this kind of data for all subjects in a CSV file.

Mikha
by Mikha
Wed Jul 05, 2017 10:45 am
Forum: BrainVISA
Topic: Refsurface of graph fold
Replies: 5
Views: 15120

Re: Refsurface of graph fold

Hello, My previous post was a mistake. Actually I want to calculate the local Sulcal index. I already have "surface_native" for each sulcus of each subject and now I need the "brain_hull_area" all over the brain. Does anybody know a process which give this attribute automatically...
by Mikha
Tue Jul 04, 2017 11:36 am
Forum: BrainVISA
Topic: Refsurface of graph fold
Replies: 5
Views: 15120

Re: Refsurface of graph fold

Hello,
thank you for your answer. I have another question.
Can I obtain "brain hull area" from native space with the "Surface area and volume" process of morphometry?

Thank you,

Mikhael
by Mikha
Mon Jul 03, 2017 4:19 pm
Forum: BrainVISA
Topic: Refsurface of graph fold
Replies: 5
Views: 15120

Refsurface of graph fold

Hello,
When we look at the graph fold of a subject's left hemisphere in Anatomist browser, we can obtain a surface and a refsurface for a particular sulcus.
What does represent refsurface here?

Thank you for your help,

Mikhael
by Mikha
Mon Jun 26, 2017 2:56 pm
Forum: BrainVISA
Topic: Morphologist : GM_thickness
Replies: 3
Views: 14022

Re: Morphologist : GM_thickness

So, it is what i thought, but can you tell me if it is calculated before or after talairach's normalization?

Thank you,
M. Azilinon
by Mikha
Mon Jun 26, 2017 1:09 pm
Forum: BrainVISA
Topic: Morphologist : GM_thickness
Replies: 3
Views: 14022

Morphologist : GM_thickness

Hi,
It's just a simple question : How is GM_thickness calculated?

M. Azilinon
by Mikha
Mon Jun 26, 2017 1:03 pm
Forum: BrainVISA
Topic: Morphologist : how to normalize native lengths?
Replies: 2
Views: 13413

Morphologist : how to normalize native lengths?

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