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Sat, 02/22/2014 - 16:00精进不休大家好， 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...3417 reads
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Fri, 02/21/2014 - 00:37manuberliDear 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?7915 reads
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Thu, 02/20/2014 - 20:17water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. Mask size is 181x217x181, not same with required size 61x73x61 Error in ==> rest_ExtractROITC at 37 ...6006 reads
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Wed, 02/19/2014 - 16:51water看了左老师一篇文章，提到静息态fMRI重测信度， As in our prior work , we computed intra-class correlation coefficients (ICC) to quantify test-retest reliability. To calculate the ICC for each voxel, we consider a random sample of subjects with repeated measurements of a...5917 reads
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Thu, 02/13/2014 - 19:18kvoigtHi, 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 (...6256 reads
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Thu, 02/13/2014 - 18:51janRHello 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\\...4066 reads
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Thu, 02/13/2014 - 06:41watermatlab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？13796 reads
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Wed, 02/12/2014 - 09:24qqguai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！5623 reads
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Wed, 02/12/2014 - 00:50waterROI wise计算种子点间功能连接系数，提取后进行两组比较，r值有正负，请问： 1、在组内计算均值和组间进行比较时是采用绝对值还是原始数据？ 2、如果是原始数据，可能会出现疾病组和对照组T检验没有显著性差异，但是一组r值为正，一组为负的情况，那么这时候T检验还有意义吗？7673 reads
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Thu, 02/06/2014 - 22:52sxmu_psychiatry尊敬的论坛老师，有一问题请教如下： 我们在matlab2012a下加载了REST V1.8，之后运行其中的reho运算。 首先想问一下，REST开始运行时出现的“set REST Workers”对话框中，Parallel computation toolbox detected是什么意思？ How many workers do you want REST to use?这个问题，如果只是想在计算机完成一组数据的reho值计算，是不是输入默认值0，然后ok就可以了？...6045 reads
