correl tractography blue and red tracks difference

[Daria Sharapova]

Dear Frank, I have two questions regarding correlation tractography. I have attached an example of one analysis with different FDR, we were comparing group housing and single housing mice.

Q1: why red tracks and blue tracks are appearing with different intensity?

q2: what is the minimum sample size for the correlation tractography.

Thank you.

Daria

[Frank Yeh]

Sorry for the delayed reply.

Q1: why red tracks and blue tracks are appearing with different intensity?

It looks like a visualization issue. Most of my test cases are human data, and I will keep an eye on this and fix issue with animal scans.

In your case, you may load the tracks again in Step T3 to generate a more consistent visualization.

 

q2: what is the minimum sample size for the correlation tractography.

The analysis depends on a linear regression, and usually it needs at least 10 or more samples.

Best,

Frank

 

Thank you.

Daria

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[Daria Sharapova]

if it will be helpful I can download our data and more details via data upload on the dsi studio website