Question about CWAS

Submitted by YukiSakai on Fri, 12/18/2015 - 03:24

Dear DPARSF experts,

 Thank you for developping this useful tool!

 I have question about CWAS.

 Although it woks very well in most cases, I got strange results sometimes. I attached the example of F_1_CWAS.nii (example.png). Like this, in some cases, I got nothing. I checked the all preprocessing steps, but there were notihg wrong. Of course, there were no apparent erros in all steps. Why did it happen?

 Best,

 Yuki

AttachmentSize
Image icon example.png5.52 KB

Forums:

YukiSakai

Fri, 12/18/2015 - 03:40


*******************************************************************************************
Yuki Sakai, M.D., Ph.D.
- Researcher, ATR Brain Information Communication Research Lab. Group.
- Research Assistant Professor, Department of Psychiatry, 
 　Graduate School of Medical Science, Kyoto Prefectural University of Medicine.
Address: 2-2-2 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan
TEL +81-774-95-1250    FAX +81-774-95-1236
E-mail: yuki1209@koto.kpu-m.ac.jp
*******************************************************************************************



2015-12-18 12:24 GMT+09:00 The R-fMRI Network <rfmri.org@gmail.com>:

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By YukiSakai (YukiSakai)

Dear DPARSF experts,

 Thank you for developping this useful tool!

 I have question about CWAS.

 Although it woks very well in most cases, I got strange results sometimes. I attached the example of F_1_CWAS.nii (example.png). Like this, in some cases, I got nothing. I checked the all preprocessing steps, but there were notihg wrong. Of course, there were no apparent erros in all steps. Why did it happen?

 Best,

 Yuki


Online version of this post: http://rfmri.org/content/question-about-cwas




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YAN Chao-Gan

Sat, 12/19/2015 - 13:25

If it only happens for some subjects, it might be something related to those subjects. You can have a careful check on the imaging data. Otherwise, it's difficult to infer which step caused the empty image.

Best,

Chao-Gan