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Dear Kie Woo, this part of the output is only for finding duplicate subjects that are sometimes overseen and are characterized by correlation close to 1. The correlation for all subjects can be found in the correlation plot. Identical subjects are characterized by very high correlations in the plot. However, if the correlation is < 0.9 it is rather unlikely that these are identical subjects Best, Christian On Thu, 31 May 2012 16:02:55 +0100, Kie Woo Nam <[log in to unmask]> wrote: ><html dir="ltr"> > <head> > <title></title> > </head> > <body> > <p>Dear experts,</p> > <p>When I run sample homogeneity check using VBM8, I see a part beginning with the following message.</p> > <p></p> > <p style="margin-left: 40px;"><b>Unusual large covariances (check that subjects are not identical):</b></p> > <p style="margin-left: 40px;">Image 1 and Image 2: <span style="color: rgb(255, 0, 0);">0.917</span></p> > <p style="margin-left: 40px;">Image 3 and Image 4: <span style="color: rgb(255, 0, 0);">0.933</span></p> > <p style="margin-left: 40px;">...</p> > <p>Unfortunately, only a few pairs (e.g. image 1 and image 2) are listed here. Could anyone please show how to extract <span style="color: rgb(255, 0, 0);">this value</span> for <u>every</u> match?</p> > <p></p> > <p>I am trying to identify duplicated images, so this would really be useful.</p> > <p></p> > <p>Thank you very much for any help in advance.</p> > <p></p> > <p>Best wishes,</p> > <p>Kie Woo</p> > </body> ></html>