The sig.mgh is the input that creates the sig.cluster.mgh (and the
summary table).
doug
On Thu, 4 Jun 2009, Judith Segall wrote:
Doug.
Again, I am only asking about the sig.cluster.summary. This was a thickness
study, where monte-carlo simulations where used to correct for multiple
compariso
Doug.
Again, I am only asking about the sig.cluster.summary. This was a thickness
study, where monte-carlo simulations where used to correct for multiple
comparisons. Why would the *max in column 2 of the sig.cluster.summary* be
derived from the sig.mgh and not the sig.cluster.mgh? Since, this r
The Max is derived from the sig.mgh, not the sig.cluster.mgh. When you
load the FSGD and look at the scatter plot, the y-axis will be the
thickness value (assuming you're doing a thickness study:).
doug
Judith Segall wrote:
Doug and freesufer list.
When I load the sig map in tksurfer i k
Doug and freesufer list.
When I load the sig map in tksurfer i know that the CWP is displayed as the
-log(10)p; however, I am not asking about visualization or the CWP. The
newest version of the wiki does a great job in explaining the p values. I
am only asking about the sig.cluster.summary repo
The Max is somewhat unrelated to the CWP. The Max is the vertex-wise
maximum and is bounded below by the vertex-wise threshold. The CWP
(cluster-wise p-value) which is derived from the size of the cluster,
the smoothness, and the size of the search space. It is not necessary
for the CWP to be
It is the maximum vertex-wise -log10(p) found in the cluster. Why do you
think otherwise? You should be able to load the sig map into tksurfer
and go to that vertex to find out.
doug
Judith Segall wrote:
Thanks, for you responses Doug and Pratap. But, both of your responses
need more clarific
The max is the -log10(p), bounded below by -log10(CWP) for positive
correlations Hence with an -log10(CWP) of 4, the Max
will be greater than 4, and will specify the maximum -log10(p) value in that
cluster, occuring at VtxMax
Is this right for -log10(p) kind if input? This is how i have been
inte
Thanks, for you responses Doug and Pratap. But, both of your responses need
more clarification, because I believe that we are not all referring to the
same 'max'.
Doug:
I understand that when I display the sig.cluster.mgh that the a CWP value
of 0.0001 would be displayed as a 4 by the color bar
It will be whatever you used as input. In this case, it is the -log10(p)
value of the maximum in the cluster (not the thickness value).
doug
Pratap Kunwar wrote:
Hi Judith,
Yes thickness. The MAX indicates the maximum -log10(pvalue) in that cluster.
Hi all. After looking over our monte-c
Hi Judith,
Yes thickness. The MAX indicates the maximum -log10(pvalue) in that cluster.
> Hi all. After looking over our monte-carlo results, I a simple question
> about the sig.cluster.summary output.
>
> Is the " Max" in column 2 below a measurement of thickness?
> thickness, is the correct int
Hi all. After looking over our monte-carlo results, I a simple question
about the sig.cluster.summary output.
Is the " Max" in column 2 below a measurement of thickness? If it is
thickness, is the correct interpretation the following: the most significant
cluster is in the laterorbitofrontal regio
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