Submitted by lionkiss on Mon, 02/15/2016 - 19:41
Liang X, Wen J, Ni L, Zhong J, Qi R, Zhang LJ, Lu GM. Altered pattern of spontaneous brain activity in the patients with end-stage renal disease: a resting-state functional MRI study with regional homogeneity analysis. PLoS One. 2013;8(8):e71507.
Submitted by jiaxize on Wed, 02/17/2016 - 09:55 Permalink
Re: Alphsim 卡0.01校验后的p值是<0.05?还是<0.01?
一个是individual的P,就是每一个voxel对应的P值,但是因为做了很多次检验,所以需要做多重比较校正,AlphaSim是通过cluster size的大小做校正的。所以会有一个校正后的P值。
Submitted by lionkiss on Wed, 02/17/2016 - 20:52 Permalink
Re: Alphsim 卡0.01校验后的p值是<0.05?还是<0.01?
哦,哦,那么如果是选了4做了平滑,选0.05,85个clusters的话,或者选0.001.18个clusters的进行AlphsSim矫正的话,最后的矫正后的P值也是0.05?
这样理解是不是正确?那么为啥结果会不一样呀?