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between a restricted ROI x gray matter mask region for Degree Centrality

Hi REST experts,

I'd like to perform Degree Centrality analysis within restricted ROI (e.g., only PFC region).
To do so, I do make a correlation matrix between voxels in the restricted ROI and voxels in whole gray matter mask (or default whole brain mask) before applying threshodling (r>0.025) and counting or averaging.

mGCA 结果如何看

大家好,

最近用Rest做了基于系数的mGCA,结果出来了,是个12*12的P值(12个ROI),但是我不知道这个系数应该如何看,是row to column 还是column to row?有文章说是前者,但是具体为什么我也不懂。

请各位前辈指教。。

谢谢。
3.15E-24 0.777128 0.183973 0.372583 0.426758 0.267168 0.911077 0.090198 0.95062 0.975273 0.867513 0.836962
0.866069 3.43E-24 0.685414 0.652474 0.04724 0.091468 0.635144 0.644233 0.269022 0.955114 0.757072 0.555135

functional connectivity correlation matrix

Dear Authors,
I would like to obtain, for each subject, a matrix of the correlation between the seed and all the voxels of the brain.
Is it possible to obtain such a ".mat" file from a functional connectivity analysis?

利用rest制作BA脑区mask提取ROI信号出错

 利用rest viewer制作BA脑区mask提取ROI信号时,matlab提示:

??? Error using ==> rest_loadmask at 64

Mask does not match.

关于静息态磁共振重测信度

看了左老师一篇文章,提到静息态fMRI重测信度,

求助:请问有谁知道怎样提取差异脑区的ALFF值?

 我想将患者与正常对照相比差异改变脑区的ALLF值提取出来,便于在SPSS里与其他量表作相关分析,但是请问在REST里怎样将差异改变脑区的ALFF值提取出来呢?我不知道该怎样操作。 请高人指教下,谢谢!

dcm2nii error - Permission denied

 Hi,

I wanted to run dcm2nii on my raw dicom files. unfortunately, matlab says "converting Functional Images:Sub_026 OK/bin/bash: ./dcm2nii_mac: Permission denied" and doesn't transfer the dicoms into .nii format. I already used the terminal (mac) trying to solve the issue with "chmod u+x ./dcm2nii_mac". This didn't help.

detreding error

Hello all,

I receive the following error message when detrending in DPARSF.
Does anyone know what it means and how to solve this?

Thanks, jan

Removing the linear trend: C:
Read 3D EPI functional images: "C:\Users\Documents\MATLAB\\FunImgNormalizedSmoothed\P5201PLA"..............................

Detrend working. Wait.............

matlab和rest报告的峰值点BA脑区不一致

matlab报告的峰值点BA脑区为13区,rest显示该坐标位于48区,是哪个步骤出现了问题?以哪个为准?

fsl head motion correction and DPARSFA motion artefacts regression

 老师您好!

 请问问如果需要用 fsl 进行头动校正,选择 6 rigid body,这样算出来的参数估计,还可以使用去除协变量里的 rigid-body 6 进行 artefacts regression 吗。。?

 因为spm 和 fsl 的 realignment 算法不太一样,但又想做去除协变量。

 非常谢谢!

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