DPABI/DPABISurf/DPARSF

ReHo on residuals questions (DPARSF)

Submitted by Rodolphe on Thu, 01/19/2017 - 16:34

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Hi,

I'm trying to calculate ReHo on residuals images obtained after GLM analysis ("simulate" resting-state).

Basically I just want to regress signal from WM and CSF, Bandpass filter, detrend and finally calculate ReHo. I have 2 questions

Performing slice timing will reorient functional images？

Submitted by gekehe on Tue, 01/17/2017 - 14:50

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DPABI/DPABISurf/DPARSF

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Hi Yan,

should I generate the Z map first before GRFCorrection

Submitted by Freshman2013 on Sat, 01/14/2017 - 02:42

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DPABI/DPABISurf/DPARSF

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Hi, all.

I run the two-sample T test between patients and control groups by DPABI and get the T map. I would like to perform the GRF correction.

I found some discussion about GRF correction, which suggested that the T map should be converted into Z map before GRF correction.

Hence, if I use the DPABI to perform the GRF correction, should I also use the "y_TFRtoZ.m" to convert the T map into Z map? And then perform the GRF correction?

Best wishes,

Thanks in advance for your kind help.

Error using CompCor

Submitted by Emilia Cheladze on Fri, 01/13/2017 - 12:37

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DPABI/DPABISurf/DPARSF

Hello!

I have resting state data acquired with the following scanning parameters: TR 2.3, vox size 3x3x3, and I am doing an analysis using DPRSFA V_2.1 and Matlab 2015b. I am reslicing the voxel size to 4x4x4 during the normalization step (this is so I can compare this data with another resting state data set at the group level).

Activation outside the brain

Submitted by Emilia Cheladze on Fri, 01/13/2017 - 12:37

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Hello!

I am doing an analysis using DPRSFA V_2.1 and Matlab 2015b. Unfortunately, when I complete the below-described analysis, I am getting significant activation outside of the brain (please see the picture in the attachment). Would anyone know what could be the cause of this?

To describe my analysis, I have data from two groups of subjects, acquired with different scanning parameters.

Error in y_Read y_FD_Jenkison script

Submitted by David Vogelsang on Fri, 01/13/2017 - 01:48

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DPABI/DPABISurf/DPARSF

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Dear Dr Yan,

I have encountered a problem while running DPARSF advanced (DPARSF_V4.3_170105).

I am running matlab 2015a. In the realignment step, I receive an error when it tries to run the y_FD_Jenkinson.m. I have attached a printscreen of the error message.

Axial view color bar

Submitted by Ali on Fri, 01/13/2017 - 01:34

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DPABI/DPABISurf/DPARSF

Dear Dr YAN

i want ask you why there is no bar in Axial montage?

Your help is appreciated.

degree centrality

Submitted by Kunhua Li on Thu, 01/12/2017 - 09:04

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DPABI/DPABISurf/DPARSF

Hi, professor Yan,

I did the degree centrality using your dparsfa , after the pre-process of data, I got a two Z-value in the results(called zDegreeCentrality_PositiveBinarizedSumBrainMap_de01 and zDegreeCentrality_PositiveWeightedSumBrainMap_de01 respectively), so which one should I choose to do the statistics, especially for the correlation analysis parts.

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ywrite

Submitted by Ali on Sat, 01/07/2017 - 21:51

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DPABI/DPABISurf/DPARSF

Dear Dr YAN

i have 3d matrix (61,73,61), but i dont have the header for this matrix?

feature map and dpabi

Submitted by Ali on Sat, 01/07/2017 - 01:07

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DPABI/DPABISurf/DPARSF

Dear Dr YAN

i use this code for map the discriminant feature to the brain:

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