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Welcome to the forum of resting-state fMRI

Need clarification

 Dear Members

We have Philips Acheiva 1.5 T fMRI scanner. For my rs fMRI study I wnat to set the scan parameters as follows. Please give your suggession if there is any mistake.

Can't establish the hdr/img files of functional connectivity through the functional connectivity function of REST toolbox

Dear all REST experts:

Recently I worked on the functional connectivity function of REST toolbox, but I found that it showed some error messages about ROI dimension when I imported the cluster ROI files.

The error messages were as follows

Error using ==> rest_loadmask at 64

how to obtain gray matter volume

Hi, Yan,
Can I use REST to obtain regional gray matter volume (e.g. PCC) with a binary mask. I mean real volume rather than mean "volume" in that area. If I need the codes;could you tell me what is the code in REST.
Great thanks!

DPRSFA error messages

Hi all,

I am using DPSRSFA toolbox for my Resting state data. Also, I am planning to preprocess all my data and use compcorr using subject's own T1 structural images as well.

Orthogonalising CSF, WM and 6 motion parameters

 Dear experts,

Can you please tell me if, in DPARSFA, CSF, WM and the 6 motion parameters are orthogonalised against each other before these covariates are regressed out during pre-processing?

Thank you very much for your advice!
Regards, Mamtis

结构像和功能像

 老师们好,请问能不能呢过跟我讲一下结构像和功能像具体指的是什么,二者的区别是什么???

成分筛选

关于独立成分分析还有些地方不明白,在成分提取之后,如何对已提取的成分进行筛选,看文章里面说筛选步骤主要分两步,(1)首先由于背侧注意网络的频带属于低频段(0.01-0.1Hz),分析各个独立成分对应的时间序列的功率谱,如果高频信号(>0.1Hz)占该独立成分的功率谱 50%以上,则去除该成分.功率图谱是怎么看的呢???(2)然后在剩余的成分中用一个模板匹配程序选择与背侧注意网络模板最匹配的成分,该模板匹配程序主要是计算每个成分中落在模板内体素的 z 值的平均值与模板外体素的 z 值的均值之差,定义为拟合度值(goodness-of-fit scores),选择拟合度值最大的成分作为最匹配(best-fit)的成分,即可认为该成分是背侧注意网络。这两步具体是怎么实现的呢??希望能得到大师指点…………

数据处理初步

  恩,先梳理一下,对于简单的数据处理的过程:

cannot find subjects

 Dear all,
I have a problem loading into DPARSF A (v2.3) those subject folders that include already preprocessed 4D RS fMRI files.
The folder structure is 
Rest
FunImg
Subj_001
    detrend_4DVolume.nii
Subj_002
     detrend_4DVolume.nii

有关FA图与fmri图像的融合问题,求高人解答!!跪谢!!

大家好,我的课题是老年性痴呆的功能磁共振研究,最近向导师汇报科研进度时,他问我能否把弥散张量的FA图与静息态图像进行融合,这样就可以对两者进行综合相关分析,我也查了一些文献,确实有一些研究者将两种图像进行了融合,于是我自己尝试了一下。

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