Dear Dr.Mclaren, Thanks for your kind concern. Under both circumstances, the extent thresholds were 0. I also found another earlier post of yours concerning this issue. https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1304&L=spm&P=R3780&1=spm&9=A&J=on&d=No+Match%3BMatch%3BMatches&z=4 In this post, you mentioned "Figure out the new thresholds and repeat the previous 2 steps. This will display only the corrected values." Now that I think about it. Does all SVC do is to calculate the threshold pertaining to the "small volume"? If so, I assume I need to threshold original statistics map again with the value I obtained from SVC. Did I understand it correctly? Best, Ce ----- 原始邮件 ----- 发件人:"MCLAREN, Donald" <[log in to unmask]> 收件人:[log in to unmask] 主题:Re: [SPM] Errors in displaying small volume correction results 日期:2013年08月14日 12点05分