欢迎到静息态功能磁共振成像论坛
Welcome to the forum of resting-state fMRI

Wrong ROI definition when extracting CSF/WM signal etc

Hello, I am receiving a bug when extracting the ROI signals (i.e white matter, CSF) for the nuisance covariates regression. The error appears after slice timing, realignment have been done. The error I received is below, I believe it is due to DPARSFA not being able to find the masks in the working directory. The error only appears with DPARSFA.

mixed effects analysis

 Hello!

I was wondering if there is a tool in REST we could use to carry out mixed effects analyses? 

Thank you
Helen

VMHC Error

Hi,

do you guys know what the problem is here?:
_____________________________________

Computing VMHC...
     Read 3D EPI functional images: "/SCR2/REST/FunImgsym/WY1K".
??? Error using ==> reshape
To RESHAPE the number of elements must not change.

Error in ==> y_VMHC at 75

DparsfA Error

 各位老师们,同学们:
       我是这方面新手,最近在学习中,我在安装DPARSF中,总是报错,工具包无法加入matlab中,已尝试了各个版本的DPARSF,均无效。
       我使用的是rest v1.7和spm5。
       DPARSF尝试打开,报错如下:

??? Attempt to reference field of non-structure array.
 
Error in ==> DPARSFA>btnSelectWorkingDir_Callback at 228

ALFF Error

Hi,

I get the following error message running the ALFF computation in DPARSF:
_________________________

Computing ALFF...
     Read 3D EPI functional images: "/SCR2/REST/FunImgCWS/WY1K".

     Load mask "".
     Performing FFT .............

rest做t检验是z值还是t值

各位老师:
      我在用GIFT软件时,已经把数据转化成z值了,然后我再用rest分别做单样本t检验和双样本t检验,我想问这个时候report报出来的结果应该是t值还是z值呢?谢谢

Alphasim cluster size & uncorrected in spm

 First thanks you for your great work!! 

I performed a multiple regression analysis in SPM8 with a behavioral score as vector for a resting state task. 
Then I performed the Alphasim test with T treshold at 0.005 rmm at 3 (for 3x3x3) and here is my doubt. 

percentage signal change

Dear DPARSF users,

I was wondering if DPARSF is converting the fmri signals from arbitary scanner uints into percentage signal change during the processing step.
I will appreciate it if you can let me know.
Thanks in advance !!

YY

rest error

Dear experts,

I am new in REST  software and i want to apply one sample and two sample t-tests on obtained ALFF maps. 

When I apply t-test from statistical analysis section, Matlab meets error (' rest_Fix_Read_Write_Error'). I applied every instructions that were mentioned in this forum before but it makes no difference.

6 motion regressors output

 Dear experts,

I am running only motion regression in DPARSFA and looking at the output it appears that the image is demeaned. Does it not output the functional image with the mean added back in order to use it for further processing?

Thank you
Helen

Syndicate content