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DPARSF--the detected time points of subject "..." is: 0, ... slice timing correction

Submitted by dominic on
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 Dear DPARSF developers, 

I'm trying to use the DPARSF toolbox to process some nifti (hdr, img) resting state sequences. It seems to be able to read the files (stored in FunImg), but when I un-tick the 'Slice Timing' box it appears with the message "the detected time points of subject "..." is: 0 ...". Does this mean that we have to conduct the slice timing step? 

many thanks,

Dominic

functional connectivity

Submitted by sunshine on
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我用rest中的functional connectivity做两个脑区的相关行分析，分别选择了两个脑区中的某一个体素作为ROI，进行相关性分析。不同的是数据预处理时高斯平滑核分别选择4和6进行处理。得到的结果却相差很大，有的出现一次正相关，一次负相关，有的出现两次相关性相差几十倍。想请问各位老师：改变高斯核会有这么大变化吗？还是这个情况属于不正常，可能是处理步骤出了问题？

some problems while using REST

Submitted by sunshine on
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      我想用rest中的功能连接分析我的静息态数据，在预处理时需要做高斯平滑，我查了一些文献在高斯核的选择上有选择8、6、4的，想向各位老师请教下做静息态分析时一般选择多少比较合适？我之前用rest中的reho做过分析，里面有一步是选择mask，我选择的是rest中mask中的Brainmask。想请教下这个Brainmask是怎么来的？是在MNI空间下的吗？

error: subscripted assignment dimension mismatch

Submitted by dominic on
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Dear REST developers,

When I attempt to run the functional connectivity pipeline in the program with a single subject 4D analyze format image with no mask it returns the message below. What does this message mean? How can I fix it? 

thank you,

Dominic

Ideal rectangular filter:    "/data/blinky/work/dominic/seed/test_1/1005031/rest_trial"
     Read 3D EPI functional images: "/data/blinky/work/dominic/seed/test_1/1005031/rest_trial".

z-score

Submitted by Pablo on
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Hi, I have a question regarding how to obtain the Zscore. Particularly I don't know how to calculate the correction for the degrees of freedom (that seems to be a value around 2), since I could not find the actual calculation. Does anyone know how it is calculated?

Also, I would also like to use the Yan's program called y_Corr2p(r,n). But I don't understand what the "n" is. In the comments of the program it says that is the number of pairs, but I don't understand.

thanks a lot, many greetings
Pablo

Error using ==> eq Matrix dimensions must agree.

Submitted by dominic on
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Dear REST developers,

I'm trialling the REST program using a single subject and specifying a voxel wise ROI. Each time I try to view the ROI as outlined in the manual or run the analysis it produces this error: 

Exception occured.    (MATLAB:dimagree)
    Error using ==> eq
Matrix dimensions must agree.

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