关于bounding box

老师,您好。

在听您录得教程时,提到过要修改bounding box,说是spm默认的bounding box太小,并提供了一个常用的bounding box的值。

如果我们要处理的数据不是成人,而是小孩,猴子,大鼠等等,我们的bounding box又应该设设多大呢?

我们如何评判bounding box设的合不合适?

bounding box的大小是否要根据voxel size的不同而改变?

麻烦老师了.

关于linear detrend

老师,您好。
我最近在用Rest处理一批静息态数据,其中的linear detrend这一项我有一些疑问。
我记得以前用普通方法做的时候,linear detrend要用到在relign时生成的参数文件。
为什么rest的linear detrend没有提示要选择参考什么文件?
而是默认的,我要把那个文件与我的图像放在一起?

谢谢

协变量

严老师,您好!
在视频当中,您说在处理协变量的过程中,在roi_wise需要全脑,脑脊液,白质mask,生成txt文件,还需要每个被试的头动(rp.txt)文件,然后把两个txt文件合并作为协变量。
我想问下,在前面的预处理过程当中,realign步骤不是已经把头动给纠正了吗,为什么还要在协变量中再加入头动文件,是否是重复操作呢?

Matlab runs out of memory

 Hi there,

I've got the Matlab problem that it runs out of memory when I start the filtering preprocessing step with a bigger (150 Volumes) dataset (rest runs under windows with 4 GB RAM; Matlab 2008b). Therefore I've tried the following solution which completely crashed my system:

http://technet.microsoft.com/en-us/library/bb124810(EXCHG.65).aspx

Error in functional connectivity analysis when using DPARSF or REST

Hello, Dear DPARSF team

I ran into some problems when I try to compute functional connectivity when using DPARSF. It gave me error message as following. I tried REST to do FC analysis and got same error message. And it is apparently not due to different preprocessing because I used DPARSF to do the preprocessing. Would you please help me solve the problem? Thanks a lot for your help in advance.

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