Regress out covariates

 I've just used the regress out covariates utility by following the online course material, however, I am confused by the output.  I was expecting another time series all with the suffix covremoved but instead all I get is a text file called Cov.txt ?  There were no error messages.  Where are the modified data?

Thanks
Anna

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DRM on Data_Process_of_Rest_fMRI_Part1_English.pps file?

 Hi there
When I try and open the Data_Process_of_Rest_fMRI_Part1_English.pps file I have downloaded for instructions I get an error message telling me that this has DRM rights and that I don't have the password to play it. "this presentation is protected by a password or DRM. To access the presentation you must have a version not protected.."

Can you let me know what I'm doing wrong.

Many thanks
Anna


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Rest-Reslice can't recongnize .nii file

Hi,

I wonder why reslice  can't convert *.nii files. Maybe it's a small bug?

Hua

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如果BOLD图像差一幅怎么分析

各位老师好:
   请教各位一个问题,我用的是GE的磁共振,我们扫描EPI序列,扫描33层,每层240个时间点,那么图像应该出来7920幅,但是有的被试图像只出来了7919幅图,这些病人不想再到医院来接受扫描了,我想请问一下,如果我想进行图像处理,如何才能找到是差的哪一幅图呢?谢谢!如果我找到那一幅图像了之后可否利用复制前面一幅图像然后在改革名字粘贴他的方法去做接下来的图像处理?谢谢!

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fMRI培训班信息(详见附件)

华南师范大学心理健康与认知科学广东省重点实验室
fMRI基础研究与临床应用深度讲习班

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rest做FC时,用的是相关还是偏相关

老师,您好。

rest做FC时,用的是相关还是偏相关。
我查看了rest文件夹里的fc.m

里面有一部分求相关,直接用的是matlab内置的corrcoef

有一部分求相关用的是自己编写的函数。

这2个都是只是求相关的。不知道以后能不能导入求偏相关的函数

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学术报告

Professor Dan Lloyd

Does the Resting Brain Talk to Itself?  Or Sing?

时间:2010-11-16,16:30
地点:北京师范大学脑成像中心三楼会议室

Biography

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关于分割配准的问题

我使用dparsf进行ALFF的处理,跑完程序之后发现11个被试中有两个的分割结果不好,灰白质和脑脊液没有分离开,是模糊的,再看他们的功能像配准也有问题。由于之前做过VBM分析,当时是直接用spm分割的,相同的被试分割效果很好(详见下图)。回想起来,中间不同的是进行resting分析的时候多了结构像和功能像coregister这一步,想请教一下为什么这一步会带来这么大的变化呢,对于这两个被试resting图像的配准有什么其他的处理办法吗(如果还是想用分割配准)。

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请教几个问题!

1. positive  functional connectivity 和 coactivation 是不是同一个意思呢?

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how to select ROI?

SORRY!I'm a newer!why and how to select ROI?

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