Hi, I don't know what is causing the discrepancy. Try taking the table input that you are passing to SPSS and pass it to mri_glmfit with the --table option. Oftentimes the SPSS model ends up being different than the model using by mri_glmfit. There could also be some issues with poorly conditioned matrix caused by having very large numbers (eTIV) and smaller numbers (age) in the same matrix.

On 1/9/2022 4:10 AM, baobao wrote:

External Email - Use Caution

Hello, Freesurfer experts:

I have encountered some problems when using QDEC analysis in Freesurfer 6.0. Because some picture need to be shown, so these problems was displayed in the attachment.Thank you for your kindness, and your prompt attention to this letter will be highly appreciated.

Sincerely, Weijie Bao /Postgraduate/ /Huaxi MR Research Center(HMRRC)/ /Department of Radiology/ /West China Hospital of Sichuan University/ /Chengdu, Sichuan, PR China, 610041/ Tel: 86-13594527190 Email: 13594527190@163.com mailto:gloriagyx@163.com

---

Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer