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March 27, 2020 05:34PM
Hello AFNI expert,

I would like to compare the ability of different atlases to extract a homogeneous BOLD signal in each ROI.
I created different atlases based on ICA. I built one atlas per component number (for ex: from 5 to 30 components so I have 25 atlases).
I was thinking of using 3dReHo with -in_rois one each atlas and calculating the curve of an increase of ReHo per atlas.
Since I increase the number of regions and so the number of subdivisions in each atlas I may expect a relatively linear increase of the mean ReHo for each atlas?
The idea is to identify one or two atlases that display a significantly high ReHo for their component number.
Does this make sense? Does this will really identify an atlas that could be "ideal" for a correlation matrix analysis?
If not, is their another way to do that?
I hope that I am not saying non-sense.
thank you for help!
Clément
Subject Author Posted

3dReHo for brain atlas comparaison

Doughboys March 27, 2020 05:34PM

Re: 3dReHo for brain atlas comparaison

ptaylor March 29, 2020 06:06PM

Re: 3dReHo for brain atlas comparaison

Doughboys April 02, 2020 05:37PM

Re: 3dReHo for brain atlas comparaison

ptaylor April 04, 2020 12:12PM



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