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resting-state learning material 静息态学习资料

Submitted by flow on Fri, 01/25/2013 - 08:41

 video 视频
EEG/fMRI correlation analysis. A data and model driven approach

http://videolectures.net/mda07_demunck_eeg/

article 文章

Overview of fMRI analysis

http://bjr.birjournals.org/content/77/suppl_2/S167.full

 

What is Functional Magnetic Resonance Imaging (fMRI)?

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DPARSF_V2.2_121225 / Warnings and empty .txt-files when writing single precision variables to .txt-files

Submitted by hbaetschmann on Tue, 01/15/2013 - 04:25

Doing ROI-to-ROI-FC-Analysis starting with FunImgARC-files produced warning-messages 'Warning: Attempt to write an unsupported data type to an ASCII file. Variable '...' not written to file.' when trying to write the result-files with extension '.txt' (ROICorrelation_subjxx.txt, ROICorrelation_FisherZ_subjxx.txt and ROISignals_subjxx.txt) in the result-directory 'Result/FC/FunImgARCF_ROISignals/'. Debugging showed, that the command 

save([fullfile(pathstr,['ROISignals_', name]), '.txt'], 'ROISignals', '-ASCII', '-DOUBLE','-TABS') (and 

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DPARSF_V2.2_121225 / Jobmats / Template....mat

Submitted by hbaetschmann on Mon, 01/14/2013 - 19:47

Unfortunately the field 'DPARSFVersion' in the jobtemplates is still set to 'V2.2_120901Beta'. Having worked a lot with this beta version and now working with the final Version 2.2 I had some troubles tracing back some results, because I used the software version indicated in the saved mat-files, which was the wrong one. Can you provide updated templates ? Beneath that, I like to work with DPARSF and REST. Best thanks !  

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请教一个关于重采样的问题

Submitted by duxue on Wed, 01/09/2013 - 10:22

 请问当我们想用Rest软件进行重采样的时候，这个软件默认的精度是多少啊？（1*1*1还是3*3*3啊？）在进行重采样的时候，有没有一个原则是只能从精度高的往低的重采样，不能把低的往高地采啊？我们现在想将VBM结果进行Alphasim矫正，当用slice viewer打开我们的结果时会出来一个警告提示我们进行重采样，而我们的结构数据在扫描时是1*1*1，当进行预处理进行配准时变成了1.5*1.5*1.5,所以最后的结果应该是1.5*1.5*1.5的，这样的话我们重采样需要采成多少呢？谢谢老师~~~

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咨询一个Slice viewer和Xjview相同P值下T值不一样的情况

Submitted by liwenfu on Sun, 01/06/2013 - 20:41

老师您好：
请教一个在Slice viewer和Xjview中相同P值下T值不一样的情况：
我的数据是结构像数据，数据是1.5 X 1.5 X 1.5的，分析被试的灰质体积和问卷得分的相关，方法是在SPM中进行多元回归分析，得到的spmT_0001使用Xjview打开，设置p value=0.005，此时的T=2.8784，然后我使用Slice Viewer打开spmT_0001文件，设置p=0.005，此时的T=3.1966。两个软件输入相同的p值对应的T值不一致，不知道是什么原因。

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