Nathan,

The significance values displayed are -log10(p), which is easier to
remember this way:  a value of '2' (as displayed for a vertex in qdec)
is p=0.01, a value of '3' is p=0.001, etc.

Nick


On Thu, 2009-08-27 at 11:29 -0400, Dankner, Nathan (NIH/NIMH) [F] wrote:
> Hi all,
> 
> I've read in the wiki that the heatmap display in qdec is a -log10(p).  What 
> is the stat behind this when determining whether the average thickness 
> differs between two groups?  Is it a t?
> 
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