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re-post. Since I would like to hear the answer to that too.. thank you Roman > Date: Wed, 20 Apr 2011 17:36:04 +0100 > From: [log in to unmask] > Subject: [FSL] FIRST shape analysis, correlation and statistical interpretation > To: [log in to unmask] > > Hi, > > I wanted to clarify if I am interpreting the output of shape analysis correctly when I used correlation and how I can derive meaningful statistics. > > I am studying age associated changes and I get great looking results. But when it came to interpretation, I went and read the FIRST manual, the thesis, the paper and numerous email discussions. What I understand is, the color bar represents F-stats only if I did an analysis looking at group differences. If I am exploring shape changes that are correlated with age, the colors "represent the strength of correlation". But it does not look like any correlation coefficient and I presume an F-statistic was not derived from the CC, either. Is there a way to derive a meaningful (publishable) statistics off of this? It seems that I cannot run FDR on it, either, since the outcome is not a statistic image. > > I will be grateful if someone can shed a light on this. > > best, > > Tugan