请教关于Degree Centrality的问题

老师,您好,有几个关于Degree Centrality的问题想请教您,

在文献Functional connectivity density mapping, Dardo Tomasia,and Nora D. Volkow中作者用到local functional connectivity density和global functional connectivity density
1.       REST中的Degree Centrality功能计算的局部功能连接密度还是全局功能连接密度?
2.       请问您对局部功能连接的计算怎么看?它主要的思路和有什么意义?

严老师,您好,请问
1.在计算Degree Centrality之前预处理包含smooth,对功能连接度的影响大不大?和计算完DC之后再平滑,哪个结果的可靠性更高呢?
2.我统计的思路是这样的
对三组被试的二值功能连接度密度进行ANOVA分析,
然后把差异较大的脑区统计出来做为感兴趣区域ROI,
用ALL模板做出相应脑区的mask,把每组被试每个ROI的平均DCm提取出来,做直方图对比。
请问严老师,现在REST计算出来的数据都是nii格式的,我会做mask,但是要怎样提取某个脑区的平均值?求指导。

1. 我认为不应该先平滑。因为degree centrality是到全脑所有其他voxel的相关,先做平滑,即自动增加了局部的连接。
2. Course Part II. REST Extract ROI signals.

谢谢严老师,请问您说的是英文版的第二部分教程吗?
还有我在
1.去线性漂移的时候有warning:
在advance版本中(DPARSF_V2.2_121225)
  In rest_detrend at 24
  In DPARSFA_run>(parfor body) at 2256
  In parallel_function at 469
  In DPARSFA_run at 2255
  In DPARSFA>pushbuttonRun_Callback at 1569
  In gui_mainfcn at 96
  In DPARSFA at 33
请老师指导一下是哪里出错了?我之前运行都没有问题。
2.在滤波的时候报错
??? Error using ==> double
Out of memory. Type HELP MEMORY for your options.

Error in ==> file_array.subsasgn at 70
        subfun(sobj,double(dat),args{:});

Error in ==> y_Write4DNIfTI at 65
dat(:,:,:,:)=Data;

Error in ==> y_bandpass at 115
y_Write4DNIfTI(AllVolumeBrain,Header_Out,sprintf('%s_filtered%sFiltered_4DVolume.nii', ADataDir, filesep));

Error in ==> DPARSFA_run>(parfor body) at 2406
            y_bandpass([AutoDataProcessParameter.DataProcessDir,filesep,FunSessionPrefixSet{iFunSession},AutoDataProcessParameter.StartingDirName,filesep,AutoDataProcessParameter.SubjectID{i}],
            ...

Error in ==> parallel_function at 469
            F(base, limit);

Error in ==> DPARSFA_run at 2398
        parfor i=1:AutoDataProcessParameter.SubjectNum

Error in ==> DPARSFA>pushbuttonRun_Callback at 1579
    [Error]=DPARSFA_run(handles.Cfg);

Error in ==> gui_mainfcn at 96
        feval(varargin{:});

Error in ==> DPARSFA at 33
    gui_mainfcn(gui_State, varargin{:});
 
??? Error while evaluating uicontrol Callback
请老师指导一下如何改错,谢谢。

谢谢严老师,我找到怎么提取ROI值的方法了,还有两个报错请您指导一下

1.去线性漂移的时候有warning:
在advance版本中(DPARSF_V2.2_121225)
  In rest_detrend at 24
  In DPARSFA_run>(parfor body) at 2256
  In parallel_function at 469
  In DPARSFA_run at 2255
  In DPARSFA>pushbuttonRun_Callback at 1569
  In gui_mainfcn at 96
  In DPARSFA at 33
请老师指导一下是哪里出错了?我之前运行都没有问题。
2.在滤波的时候报错
??? Error using ==> double
Out of memory. Type HELP MEMORY for your options.

Error in ==> file_array.subsasgn at 70
        subfun(sobj,double(dat),args{:});

Error in ==> y_Write4DNIfTI at 65
dat(:,:,:,:)=Data;

Error in ==> y_bandpass at 115
y_Write4DNIfTI(AllVolumeBrain,Header_Out,sprintf('%s_filtered%sFiltered_4DVolume.nii', ADataDir, filesep));

Error in ==> DPARSFA_run>(parfor body) at 2406
            y_bandpass([AutoDataProcessParameter.DataProcessDir,filesep,FunSessionPrefixSet{iFunSession},AutoDataProcessParameter.StartingDirName,filesep,AutoDataProcessParameter.SubjectID{i}],
            ...

Error in ==> parallel_function at 469
            F(base, limit);

Error in ==> DPARSFA_run at 2398
        parfor i=1:AutoDataProcessParameter.SubjectNum

Error in ==> DPARSFA>pushbuttonRun_Callback at 1579
    [Error]=DPARSFA_run(handles.Cfg);

Error in ==> gui_mainfcn at 96
        feval(varargin{:});

Error in ==> DPARSFA at 33
    gui_mainfcn(gui_State, varargin{:});
 
??? Error while evaluating uicontrol Callback
请老师指导一下如何改错,谢谢。

Dear Sir/Madam

I tried to calculate Degree Centrality in REST toolbox but I had a problem: Although I downloaded the latest version of REST, I couldn't right click inside the textfield in REST to select multiple subjects, and when I click on input directory there is an error showing that there is no data inside the directory.

I am using REST v1.8, SPM8 & Matlab 2013. I would really appreciate if you can help me on this issue.

Best regards
Masoud