To Dear: I would make sure of the results of the group analysis. 1. The p-value, actually -10log(p), is only used in the qdec display. That is to say, the value is used to display the difference of the two groups. 2. And Freesurfer doesn’t use any statistical significance values, like, statistical p-value, T-value, z-score … at present. 3. Freesurfer can’t display the cortical thickness in unit, mm. So, I get the conclusion that Freesurfer couldn’t quantify the cortical thickness at present.
Thank you in advance.
Feng-Xian
------------------------------------------------- Chang Gung University Mail Server Web Mail system By Chang-Gung University Information Center (http://www.cgu.edu.tw/ic/)
Hi, Freesurfer do present thickness in mm.
Also the p-Value is from the GLM model used in QDEC (mri_glmfit)
----------------------------------------------------------- Pedro Paulo de M. Oliveira Junior Diretor de Operações Netfilter & SpeedComm Telecom
On Mon, Dec 22, 2008 at 09:50, b9403208 b9403208@stmail.cgu.edu.tw wrote:
To Dear: I would make sure of the results of the group analysis.
- The p-value, actually -10log(p), is only used in the qdec display.
That is to say, the value is used to display the difference of the two groups. 2. And Freesurfer doesn't use any statistical significance values, like, statistical p-value, T-value, z-score … at present. 3. Freesurfer can't display the cortical thickness in unit, mm. So, I get the conclusion that Freesurfer couldn't quantify the cortical thickness at present.
Thank you in advance.
Feng-Xian
Chang Gung University Mail Server Web Mail system By Chang-Gung University Information Center (http://www.cgu.edu.tw/ic/)
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
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b9403208 -
Pedro Paulo de Magalhães Oliveira Junior