做功能连接时,怎样去掉被试的年龄和受教育年限协变量
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我有A、B两组被试,前期做了ALFF的双样本T检验,现在想用这些T检验显著的脑区做ROI_Wise的功能连接,数据已经通过DPARSF软件将默认的那些协变量去掉了,但是我想去掉年龄和受教育年限这两个协变量,怎么做那?
Results after 2s t-test
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Dear all,
I've been conducting a 2 sample t-test with mALFF data using REST. It results with a T-image and I cannot find any spm-like output (table with significance level).
Is there any way to get this info/table?
Thanks very much!
Victoria
I've been conducting a 2 sample t-test with mALFF data using REST. It results with a T-image and I cannot find any spm-like output (table with significance level).
Is there any way to get this info/table?
Thanks very much!
Victoria
请教关于双样本T检验的MASK的问题
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我的静息态实验有两个组,A和B,先给A、B组在REST软件中分别做了一个单样本T检验,此时没有选择MASK,然后用Slice Viewer分别打开这两个组的单样本T检验结果,使用Alphasim(0.05)矫正,Cluster个数选择的是324,我现在为了得到双样本T检验的MASK,是将正负激活的Clusters都保存下来还是只保存Only+啊,这两种有没有区别啊,我计算MASK时的表达式是“(i1>0+i2>0)>0”.
白质MASK
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请教一下:
经过VBM得到了一组人平均的WM图,然后我想制作一个该组人的WM MASK,应该怎么做?是不是有一种做法:set the thresholded to ensure 80% tissue type probability,这个应该怎么做啊?
谢谢!!!
或者是不是可以直接设阈值,阈值是经验值,那么一般应该设多少,0.2?有没有相关参考文献?
再次感谢!!!
经过VBM得到了一组人平均的WM图,然后我想制作一个该组人的WM MASK,应该怎么做?是不是有一种做法:set the thresholded to ensure 80% tissue type probability,这个应该怎么做啊?
谢谢!!!
或者是不是可以直接设阈值,阈值是经验值,那么一般应该设多少,0.2?有没有相关参考文献?
再次感谢!!!
关于双样本T检验
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老师:
你好!
用rest做双样本T检验时,怎么操作协变量这一栏,比如要剔除年龄、性别,课件视频上说加入text文件,是直接把数据写到上面吗,以什么样的格式呢,我试了我几次都不行,请教老师这一步操作怎么做?
谢谢!
Octave and REST
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hi,
I'm new to this topic and would be interested if there is any effort to port REST to octave
I'm new to this topic and would be interested if there is any effort to port REST to octave
ICA
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ICA
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