mask制作问题

Submitted by pingfan2008 on
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老师们,好。

近期看到一篇文章: Resting-state functional connectivity patterns predict Chinese word reading competency. PloS one, 7(9), e44848
里面提及的mask制作,此文是这样说:
The  RSFC  analysis  was  performed  using  the  Resting-State fMRI Data Analysis Toolkit (REST) [25]. We conducted RSFC

Mask does not match?

Submitted by jiuer on
Forums
向各位老师请教一个问题啊:

         用DPARSF_V2.2_130309 处理数据,在进行了slice timing;realign;Reorient Fun;Reorient T1;T1 coreg to Fun;New segment+DARTEL;Normalize 之后,准备进行接下来的步骤:Nuisance Covariates Regression;Warp Masks into individual Space等

Reorienting matrices for online data

Submitted by YAN Chao-Gan on

Given the amount of time and effort for interactive reorienting, here we released the reorient matrices for some of the publicly released data. Please download and unzip the related file, and then put the folder of “DownloadedReorientMats” under your working directory.

1. Autism Brain Imaging Data Exchange (ABIDE) (Di Martino et al., in press) (http://fcon_1000.projects.nitrc.org/indi/abide/). Please download: DownloadedReorientMats_ABIDE.zip.

关于提取z值

Submitted by wen_qing_xia@126.com on
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老师您好,我看了很多文献里都有做完功能连接以后提取Z值然后和量表等资料做相关,但是我不清楚这个z值是怎么提取的呢?我看的文献里都没有写这个具体过程。可以用rest 软件提取吗?

modulation in VBM (in DPARSFA)

Submitted by Chen0075 on
Forums
 各位老师, 有个VBM的问题, 

在做VBM的modulation时候我们经常这样选择:
单击Modulated normalized选择“affine+non-linear only”。这里的affine+non-linear only是什么意义,是说T1像经过affine和non-linear两次normalization,然后得到一幅MNI的图像?
在DPARSFA的VBM里面是如何选择normalization和modulation过程的。

谢谢!

functional connectivity maps

Submitted by Helen Sawaya on
Forums
 Dear all,

I am new to DPARSF and I have a question concerning the z transformed functional connectivity maps. I am a bit surprised at the results because the z values of my maps are pretty low (most are between -0.6 and 1). I did not globally regress my images and I expect at least a few voxels to have values of 3 or 4. Anyone has any ideas as to why that is happening?