Fwd: What's new for '+"resting" +"fMRI"' in PubMed
Submitted by admin on Sun, 01/16/2011 - 20:30
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双样本t检验异常信号
Submitted by xying5158 on Mon, 01/17/2011 - 16:08
您好,我用dparsf得到alff结果进行两样本t检验时发现还有脑室内的信号增强还有很多undefined的脑区(自己做的mask和brainmask均有),这时候应该怎么处理?
另外,利用两组数据单样本t检验结果做mask的表达式是不是(i1>0)+(i2>0)>0,用~表示不等于 image calculator出错,求准确表达式
不胜感激!
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linear detrend
Submitted by efine on Wed, 01/19/2011 - 07:17
Hi,
Could anyone offer me some advice regarding whether I should detrend the data during preprocessing in DPARSFA?
thanks
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What's new for 'resting fmri' in PubMed
Submitted by Xiao-Wei Song on Tue, 01/18/2011 - 22:30
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ROI的选取
Submitted by xying5158 on Wed, 01/19/2011 - 14:20
您好,我想从ALFF信号异常增高的脑区选择ROI做功能连接,除了选择目前广泛认同的异常脑区外,能根据ALFF的双样本T检验结果选择么,比如voxel size 或者t值之类的
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如何反转图像
Submitted by miaomiaolong on Thu, 01/20/2011 - 21:19
北师大的各位老师和同学,如果我想把图像左右反转,如何通过一个小程序实现?
另外我想提取一侧脑半球的平均值,如何但是没有相应的mask,如何可以做到?
我是学医的,这两个问题困扰我好久了,但是没有编程基础,一直找不到相应的小程序实现。
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关于矫正的问题
Submitted by luojia on Sat, 01/22/2011 - 20:28
请教一个关于矫正的问题,我做的课题是患者治疗前后的比较,采用了配对T检验,检验时采用了FDR矫正,P值取了0.05, extent threshold为10,结果为阳性,有存活的VOXEL,但在接下来的SLICE VIEW时不知道该如何选择CLUSTER SIZE,是选择10吗?还是其他的?是不是就不用再采取AlphaSim矫正了?谢谢
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What's new for '+"resting" +"fMRI"' in PubMed
Submitted by Xiao-Wei Song on Tue, 01/25/2011 - 05:35
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What's new for '+"resting" +"fMRI"' in PubMed
Submitted by Xiao-Wei Song on Tue, 01/25/2011 - 22:40
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group analysis
Submitted by efine on Wed, 01/26/2011 - 05:34
Hi,
I just wanted to confirm a few details.
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