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

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TitleAuthorDate
atan(r) values of second level results
Crystal Goh Jun 2, 2012
Alfonso Nieto-Castanon Jul 8, 2012
Patrick McConnell Dec 20, 2014
Alfonso Nieto-Castanon Dec 21, 2014
Patrick McConnell Dec 21, 2014
Alfonso Nieto-Castanon Dec 24, 2014
Patrick McConnell Dec 24, 2014
Patrick McConnell Jan 8, 2015
Alfonso Nieto-Castanon Dec 27, 2014
Patrick McConnell Jan 7, 2015
Alfonso Nieto-Castanon Jan 15, 2015
Patrick McConnell Jan 22, 2015
Michael King Dec 16, 2014
Alfonso Nieto-Castanon Dec 17, 2014
Michael King Dec 17, 2014
Michael King Dec 17, 2014