Hi, I assume that you demeaned EV2. In which case a [1 0] contrast asks
where is the group mean significant and [0 1] and [0 -1] ask where there
is significant positive (or negative resp.) correlation with lesion
volume.
Cheers.
On Fri, 11 Nov 2005, Carmela Tartaglia wrote:
> Hello
> Silly questions-I tried to covary out T2 lesion volume and I am wondering
> about the significance of the results. I set it up as EV1 group mean and EV2
> T2 lesion volume. I get cluster_zstat1_tal and cluster_zstat2_tal as
> results. Now the first says group mean and the second T2 lesion volume-I
> don't understand which is the results for group activation with T2 lesion
> volume covaried out????
> Carmela
>
--
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
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