Global mean regression removes all voxels?

Submitted by nertman on
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Hi, I have been using DPARSFA for preprocessing and it has been working very well so far. I tried to remove the Global Signal nuisance regressor, but after doing so my data has no voxels left -- i.e., when I enter it into a first-level model in SPM, and estimate the model, I get this popup message:
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No inmask voxels - empty analysis!
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REHO images empty

Submitted by rakesh on
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Dear REST experts,
i have performed the preprocessing of my rest fMRI data followed by the ReHo processing. after running the analysis, i have the rest ReHo*.* image, but this image is empty, can anyone suggest me where could i have made mistake (preprocessed image - smmothed image is looking fine)

ICA

Submitted by rest_yan547833397 on
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各位老师：
     您们好，我最近在做ICA分析,遇到2个问题需向老师们请教。
      1）gift软件下的ICASSO工具箱有两个选项maximun/minimum cluster size to get stabe run， 请问是什么意思？如何填写比较合适。icasso所用原理和mica得到稳定成分的原理一样吗？
      2）如何计算高频信号》0.1hz占该独立成分的功率谱的百分比？
     期待各位老师回答
     祝好！

ICA

Submitted by rest_yan547833397 on
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老师：
     您好，我最近在做ICA分析,遇到2个问题需向老师请教。
      1）gift软件下的ICASSO工具箱有两个选项maximun/minimum cluster size to get stabe run， 请问是什么意思？如何填写比较合适。icasso所用原理和mica得到问题成分的原理一样吗？
      2）如何计算高频信号》0.1hz占该独立成分的功率谱的百分比？

ICA做脑区分割到最后怎样解决overlap的问题

Submitted by Remote Hill on
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张寒老师，
      您好，我现在用GIFT软件做ICA功能分区，把我的目标mask load进去后按照MDL算出了最适component进行了ICA运算，出来的ICs有很多都是重叠的，就是说我mask内的voxel对多个IC都有贡献，那么该能用什么软件将这些overlap的voxel进行分类使它们归于一个最相关的IC。还有关于您做的那个听觉分区的图，请教一下用什么软件可以进行颜色标记。rest里的Image calculate做的是nii格式的图，但是ica出来的是img和hdr的图，该怎样的转换进行ICs的求并集，这种求并集能否解决我说的overlap的问题，期待您的答复


       祝好.

GCA error

Submitted by yth0306 on
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老师，您好在GCA运算时通过AAL定义ROI，报错，麻烦指教，谢谢。
 Error using ==> rest_misc>ViewROI at 310 Wrong ROI definition, Please check: C:\Users\yth0306\Desktop\r.nii.img Error in ==> rest_misc at 196 ViewROI(AROIDef); Error in ==> rest_SetROI at 166 rest_misc( 'ViewROI', REST_SetROI_Cfg.ROIDefinition); ??? Error using ==> waitfor Error while evaluating uicontrol Callback GCA :"C:\Users\yth0306\Desktop\w\PA04" Computing GCA with: "C:\Users\yth0306\Desktop\w\PA04" Read 3D EPI functional images: "C:\Users\yth0306\Desktop\w\PA04"........................................ ROI time course retrieving through "C:\Users\yth0306\Desktop\r.nii.img". Exception occured. () Error using ==> rest_gca_coefficient at 141 Wrong ROI definition, Please check: C:\Users\yth0306\Desktop\r.nii.img 141#line, rest_gca_coefficient, in "F:\FDataanalysis\DATAanalysis\REST_V1.8_130303\REST_V1.8_130303\rest_gca_coefficient.m" 957#line, btnComputeGCA_Callback, in "F:\FDataanalysis\DATAanalysis\REST_V1.8_130303\REST_V1.8_130303\rest_gca_gui.m" 96#line, gui_mainfcn, in "F:\D\anhuangchengxu\matlab\toolbox\matlab\guide\gui_mainfcn.m" 39#line, rest_gca_gui, in "F:\FDataanalysis\DATAanalysis\REST_V1.8_130303\REST_V1.8_130303\rest_gca_gui.m" 0#line, @(hObject,eventdata)rest_gca_gui('btnComputeGCA_Callback',hObject,eventdata,guidata(hObject)), in ""
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