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Dear Richard, > I wondered if you could explain one thing to me, which is this business > of 'databasing'. You suggested that I should include the equivalent Z > score in the tables in the paper (which currently just list the p > value) rather than the T score. Could you let me know why this is? Is > there a particular database that we support that lists Z rather than > T? Yes - BrainMap has fields for Z scores. Z score [equivalents] are preferable to T scores for databasing because their probability distribution does not depend on the degrees of freedom (number of scans, subjects and degree of serial correlations). With very best wishes, Karl