DPARSF ReHo calculation problems

Submitted by chlai on
Forums
Discuss

Dear REST experts:

I have some problems of process about ReHo production during DPARSF.

Running job #1
------------------------------------------------------------------------
Running 'Smooth'
Done 'Smooth'
Done

Moving Smoothed Files:subject001 OK

Removing the linear trend:

Read 3D EPI functional images: "E:\Neuroimaging database\MDD VBM\TEST\FunImgNormalizedSmoothed\subject001".............................
............................
Moving Dtrended Files:subject001 OK

请教臧老师一个审稿意见的回答

Submitted by qianqian on
Forums
Discuss2
 臧老师，您好！

我一个fMRI研究收到了两个比较难以回答的审稿意见，想向您请教下：

1. 我同时记录了两组被试（假设为组A和B）、两个阶段（反应阶段 和 反馈阶段）的fMRI结果，分别对两组被试在两个阶段的大脑激活模式进行了分析。

在报告数据时，我使用了三种阈值：

针对反应阶段：组内比较使用的阈值是 FDR<0.01, K>50；组间比较是FDR<0.05, K>50；
针对反馈阶段：组内比较和组间比较的阈值都使用FDR<0.001，K>50.

Bounding box to create data with 4x4x4 voxel size in MNI space?

Submitted by jwhnavy on
Forums
Discuss

Hi Dr. Yu-feng Zang and collegues,
I'm Wi Hoon in South Korea. I'd like to convert voxel size of 3x3x3 to 4x4x4 in MNI space using DPARSFA or SPM. 
Could you tell me bounding box imformation for 4x4x4 voxel size (e.g., [-90 -126 -72; 90 90 108] for 3x3x3 voxel size)?

Best,
Wi Hoon

VMHC within DPARSFA pipeline

Submitted by druzgal on
Forums
Discuss
I've have a question doing VHMC within the DPARSFA pipeline. The default outputs of VHMC include both VMHC and zVMHC files. The zVMHC file seems to reflect a Z-transform of the VMHC file, performed on every voxel inside a default brain mask. However, the default mask includes the midline slice that has perfect correlation with itself. Is there a way to exclude the midline slice from the Z-transform?

Thanks,

Jason

error in DPARSFA

Submitted by Louise on
Forums
Discuss

Dear teachers：
Added is the errors when running ‘new segment+DARTEL’ using DPARSFA. But when running ’segment‘ it can work well. Actually, I can find cfg_util in spm8. Could you tell me the reason? Thank you very much!
The following modules did not run:
Failed: New Segment

Added new function of "corr(i1,i2,'spatial')" in REST Image Calculator. (DONG Zhang-Ye)

Submitted by insular on
Forums
Discuss
Dear Dr. Dong

I notice a new function added into REST Image Calculator, "corr(i1,i2,'spatial')" .

What is the 'spatial' correlation between image 1 and image2?

Is there any ref. about this  'spatial' correlation?

Thanks.

REST-GCA paper mistake in formula wrriten.

Submitted by zangzx on
Forums
Discuss
A wrriten mistake in transformation of F values to F' values in REST-GCA paper was pointed out by Mr. WU Guorong. We thank Mr. Wu for the correction and we confirmed the REST-GCA toolkit code is correct.
We apologize to readers for this mistake. In the readme file of REST-GCA, this formula is correctly presented. Users could download the readme file in REST-GCA section.

这种情况应该用multiple regression 还是one-way ANOVA between subjects

Submitted by liwenfu on
Forums
Discuss2
大家好，有个问题请教下：
      我在试验中收集有午睡习惯的被试每周的午睡天数，有4 5 6 7共四个选项，如果我想找到午睡习惯可能影响到的脑区（使用VBM数据），应该是使用multiple regression 还是one-way ANOVA between subjects哪？如果使用one-way ANOVA between subjects的话，contrast vector应该怎么设置才能满足我的目标那？
      谢谢！
Subscribe to