November 2016

rest后处理的一些问题

请教各位老师:

我在用REST做extract ROIsignal时,填写了一个ROI区域,结果出来三个样本分别是0.572,0.571和0.551,我想请问信号值有没有阈值,大于多少才算阳性?还有我加入2个ROI,ResultCorr结果显示的相关系数是值得两个ROI的连接值吗?

还有个问题就是我用DPARSF跑出来的数据做power spectrum得不到谱线,但是用GIFT的结果却能得到谱线,这是什么原因?

因为我是放射科医生,对有些数学问题和处理步骤不太了解,还请各位老师不吝赐教。

Rest Tools - ALFF maps

Respected Sir , 

My work is focussed in the analysis of neuroimages. I ran a group of subject fmri data with Rest tools and obtained ALFF maps . I would like to know how to obtain the alff value for individual regions of the map and  parcellating it with Automated Anatomical Labeling (aal atlas) ? Is there a way to directly extract the ROI from the rest toolbox ?

Regards,

Anannya

Basic software needed to start analyzing FMRI

Hi, 

I am epilepsy surgeon wanted to start fMRI for our epilepsy cases evaluation. 

1. Which softwares do I need apart from the toolkit mentioned here. 

2. specifications of computer, ( I have windows 10). 

Can somebody help with analysis from this group? 

Matlab代码解读

有一段代码,请论坛内大神解读一下,完全读不懂:

clc;clear;

[data voxel head]=rest_readfile('structure.nii');

[dim1,dim2,dim3]=size(data);
Data=zeros(dim1,dim2,dim3);
for j=1:dim3
    Data(:,:,j)=data(:,:,dim3-j+1);
    
end
x=Data(:,:,100);

rest_WriteNiftiImage(Data,head,'new.nii')