About Masks in REST have different origin coordinate with SPM images

老师:
     你好,我使用rest提供的mask来提取全脑、CSF、白质的信号,但是我发现这些mask的中心点坐标即origin coordinate是0,而SPM里面的图像则不是。所以无论使用MRIcro的overlay还是SPM的checkreg功能,rest提供的mask与SPM里面的图像都不配,这样的话是否提取mask内的信号是可靠有效的呢?因为我不知道其计算的原理,所以在此发问,我的图像都已经是重采样后与mask相同的体素大小和坐标框。
   请老师解释一下。
mw

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dparsf做功能连接,生成的结果中ROI没用用实名标识,而是用ROI1,ROI2,ROI3,.......,怎么辨认该ROI是什么?

在dparsf中假如用4个ROI做功能连接,如A,B,C,D,生成的结果为ROI1,ROI2,ROI3,ROI4,请问,这里ROI1-4与A-D的对应原则是什么?是仅仅按加入时的顺序还是按ASCII的大小排序,请明示?

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请问如何得到mPFC的mask图像

在计算激活体积的尝试中,例如mPFC,但是我不知道mPFC这一脑区通用的mask的大小(体积范围从多少到到多少)或者是x,y,z,MNI坐标的区间范围?

还有就是:请问如何得到mPFC的mask图像 。

谢谢了。

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Positive not negative correlation maps in REST

Dear REST developers and experts
 
To the first, I really appreciate for providing a wonderful free software.
I've also attached the following query to the SPM mailing list.
 
I'm analysing seed-based (hippocampus) resting-state functional connectivity between patient and control groups by using spm8 and especially REST program.
The resulting zFC maps of include both positive and negative correlations.

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About Granger Causality Analysis

Dear REST experts,

 Thank you for your excellent software REST and DPARSF.
 I'm interested in Granger Causality Analysis (GCA). I think that shorter TR is recommenced when we try to do GCA.  When we use REST GCA tool, how long TR will it be recommended?

 Thank you in advance,

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运行 REST 的硬件配置

运行REST 的计算机硬件配置应该是多少?麻烦诸位专家指教,多谢

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用DPARSF 做到Normalize报错

报错都是:

 

  * - SPM8: spm_affreg  ----------------------------------------------

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用dparsf_v1.0_100510报错

最近用个用dparsf_v1.0_100510,发现报错,不知什么意思

Error in ==> DPARSF>UpdateDisplay at 1152
  if (theOldIndex>0) && (theOldIndex<= theCount)

Error in ==> DPARSF>ckboxEPIDICOM2NIFTI_Callback at 330
 UpdateDisplay(handles);   

Error in ==> gui_mainfcn at 75
        feval(varargin{:});

Error in ==> DPARSF at 39
    gui_mainfcn(gui_State, varargin{:});

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dparsf软件提取timecourse的相关问题

各位老师们好:
      我在用dparsf软件提取静息态特定脑区的timecourse时,得出的值基本处于-5~5之间,我想问一下这些值代表了什么含义,是怎么计算出的呢?另外,我想用dparsf软件提取任务态的timecourse,我的做法是把任务态预处理的数据放在FunImgNormalizedSmoothedDetrendedFilteredCovremoved文件夹下,但是不再对这些数据进行Detrend、Filter以及去除协变量处理直接提取特定脑区的timecourse值,不知道这种做法可不可行,如果可行的话我得出的值大概都是800或900,那么这个值又代表了什么含义,应该怎么解释呢。
       谢谢各位老师的解答。
        祝 
      一切顺利

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Problem with deleting first images

Dear reader,

I know a similar problem has been reported before, but somehow the solution offered does not work for me.
And parts of the answer was in Chinese so I was not able to follow it completely.

DPARSF nicely starts with processing the DICOM files.
I get a folder called FunImg > Subject > XXX.nii.gz (containing a .nii with 207 images)
But then the following error message appears

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