Forum of resting-state fMRI

咨询

Submitted by natalia on Wed, 12/22/2010 - 23:17

严老师：
您好。我根据您的视频做了三个正常人的REHO及ALFF，顺便试着做了个单样本t检验，得出的图像出现了蓝色的激活区，而且在脑室里也有激活的存在。现在的问题是1、为什么会出现负激活，这个要怎么解释？2、脑室出现激活，是因为我的病例数太少，统计学误差还是因为在数据处理过程中有问题？谢谢您。

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Submitted by WHJUNG on Wed, 12/22/2010 - 09:00

The REST toolbox is coded as follows;
" Covariables Polort (Polynomial Orthogonal Degree): 0 "

Is it right? I think this code can't regress out covariables because '0' means not to use this function.

Please comments.

What number is right for covariables polort?

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