请教关于Degree Centrality的问题

Submitted by rumen on
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。

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。

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