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help > atan(r) values of second level results
Jun 2, 2012 09:06 AM | Crystal Goh
atan(r) values of second level results
Hi there,
I performed seed to voxel fc with bivariate correlation and produced second level maps per condition per seed using a within-subjects design.
when I open the saved .nii masks in mricron, or when I plot beta values in SPM, the atan(r) values are SUPER low, they range from 0.05 to 0.3. Most papers with fc threshold their z-maps above say z=3, but this is impossible for me.
I wanted to know if I should be worried, since the t-values of significant clusters have no bearing on the strength of the correlations themselves.
Any help appreciated. Thanks!
crystal
I performed seed to voxel fc with bivariate correlation and produced second level maps per condition per seed using a within-subjects design.
when I open the saved .nii masks in mricron, or when I plot beta values in SPM, the atan(r) values are SUPER low, they range from 0.05 to 0.3. Most papers with fc threshold their z-maps above say z=3, but this is impossible for me.
I wanted to know if I should be worried, since the t-values of significant clusters have no bearing on the strength of the correlations themselves.
Any help appreciated. Thanks!
crystal
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Title | Author | Date |
---|---|---|
Crystal Goh | Jun 2, 2012 | |
Alfonso Nieto-Castanon | Jul 8, 2012 | |
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