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Dear Anderson, Thanks a lot for your precious answer. I found the con*.img and hdr in the working directory of my SPM statistics. Moreover I read carefully the paper from Jernigan et al. which is very informative indeed and that I already had noticed. However, what I was unable to undesrtand is how to obtain (or to find out) the correspondent Z-scores values for the voxels/clusters of these con*.img maps. Please, could you help me again? Really many, many thanks... best Silvia For your convenience, I enclose you here the request of the referee : "Results should also be presented in terms of z-score (T-score) averaged on unthresholded contrast image for regions of interest that are typically involved in the disease (disallow F and T thresholds in SPM for this). Furthermore the z-scores image should be also presented unthresholded (to create them, again disallow statistical threshold in SPM)". ---------- Initial Header ----------- From : "SPM (Statistical Parametric Mapping)" [log in to unmask] To : [log in to unmask] Cc : Date : Thu, 17 May 2007 16:40:19 +0100 Subject : Re: [SPM] unthresholded maps > Dear Silvia, > > Just open the contrast images generated by SPM, i. e. the files named > con*.hdr+img. They should be the unthresholded maps that your reviewer is > asking to see. > A very good paper on the advantages of unthresholded maps is Jernigan et al > (2003), Hum Brain Mapp 19:90-95. Have a look at it. > > Anderson > ------------------------------------------------------ Passa a Infostrada. ADSL e Telefono senza limiti e senza canone Telecom http://click.libero.it/infostrada