Resting-state fMRI topics

 各位老师您好：

     我基于某几个ROI计算ALFF，每个被试得出一个*.nii文件，然后我做one-sample t-test，得出T*.nii文件，我该如何取出我定义的ROI的ALFF值呢？弱弱的问一下，ALFF可以用来做些什么工作呢？我之前这样做的步骤对吗？

谢谢各位老师帮忙回答！

老师您好：
      四组被试(三组病人，一组正常人)，每个人分别有三次扫描，定义了两个主效应：group(组)和condition(代表三次扫描)；一个交互效应：group*condition。采用spm的flexible factorial design设计好矩阵，想看group和condition及这两者的主效应，contrast weight分别应该怎么定义？
     期待各位老师回答

 Dear experts,

I wanted to seek confirmation that DPARSFA runs exactly the same way regardless of whether the input are .nii images or .img/.hdr images? In your script it seems that the code accepts both formats, but I wanted to be sure that using .img/.hdr files gives me the same result as using .nii images would.

Many thanks indeed!

 Dear experts,

I wanted to seek confirmation that DPARSFA runs exactly the same way regardless of whether the input are .nii images or .img/.hdr images? In your script it seems that the code accepts both formats, but I wanted to be sure that using .img/.hdr files gives me the same result as using .nii images would.

Many thanks indeed!

 Dear experts,

1. When conducting a FC analysis in DPARSFA, it seems I cannot specify two runs per person. Is this correct or is there a way to do an FC analysis using both runs in DPARSFA?

Hi everyone
I have a question regarding the slice viewer.
I performed paired T test from the rest toolbox on a group with 6 subjects for 2 conditions.
When I overley it with the template (ch2), it keep giving me an error when I was trying to change the threshold scale provided in the viewer.
I have the latest version of REST.

Any Ideas please?

dcm的roi一般是在spm里面，用eigenvariate提取，我看了dcm的程序，没完全看懂，好像还有将roi时间序列detrend,白化的处理再建立模型。请问能否将rest提取出的roi作为dcm的输入呢（rest的roi有正负，而spm提取的roi只有正值）。谢谢老师！

请问各位大侠， 

如果扫描的slice是偶数层 （如30层） slice order 和 reference slice 应该怎么设置？

谢谢！^^

 你好，请问一下 ，mica软件包里的mat文件在哪，是什么呀，我怎么找不到

 matlab下运行spm8 fmri 处理BOLD数据进行segment时出现如下错误，各位老师给予指导吧，小弟新手，谢谢！