DPABI/DPABISurf/DPARSF

Working in native space

Submitted by David on Thu, 03/09/2017 - 13:30

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Hi,

as I see, DPABI has the option to calculate measures like ALFF in native space and then to normalize the derivates and smooth the derivatives. On which article or method is this based on?

greetings

David

Image Orientation

Submitted by Loose on Tue, 03/07/2017 - 10:41

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DPABI/DPABISurf/DPARSF

Dear readers,

I am wondering about the following circumstance:

I realigned my fMRI-images with DPARSF (s. realigned_image) but now I noticed that their orientation (anteriro-posterior) does not match that of the SPM template used for normalization (SPM_template). Is that a mistake of my own or does DPARSF change this orientation difference during normalization?

with kind regards

Markus Loose

Regress covariates with DPARSF

Submitted by Giulia_forcellini on Mon, 03/06/2017 - 13:54

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DPABI/DPABISurf/DPARSF

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Dear all,

Thank you for the great toolbox. I am new at using DPARSF and I am still trying to familiarize with it.

Frequency Band - Questions about ReHo and fALFF

Submitted by HpaulFr on Mon, 03/06/2017 - 09:19

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DPABI/DPABISurf/DPARSF

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Hi everybody, i've some questions about DPARSF and the frequency range which is selected for processing :

Q. 1 : If I want to chose a specific frequency band for ReHo analysis (like in this paper : doi:10.1371/

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 7.0px Helvetica}

journal.pone.0086818.: IMF1 : (0.1-0.25 Hz), IMF2 (0.1-0.04 Hz)...), is this filter has to be used (cf screenshot) ?

How to perform spectral DCM analysis

Submitted by fffffhhd on Tue, 02/21/2017 - 02:55

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DPABI/DPABISurf/DPARSF

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Dear experts,

I was wondering how to perform spectral dynamic causal model (spDCM) analysis on the resting state MRI data preprocessed by DPARSFA. As I know, to perform a spDCM analysis in SPM12, I must first extract volumes of interest (VOIs) in SPM. In the manual of SPM12, before extracting VOIs, I need to regress out nuisance covariates in SPM.

Conjunction analysis

Submitted by yaosir on Mon, 02/20/2017 - 21:51

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DPABI/DPABISurf/DPARSF

Dear Chao-Gan,

I have examined ALFF abnormalities in two type of patients and I would like to examine the shared abnormalities. Acctually, I have tried to use SPM to do a conjuntion analysis, but SPM seemed to require the spm.mat file which I did have, so I was wondering that can I achieve this goal using DPABI?

Best,

Vincent

Motion regressors - temporal derivatives

Submitted by Michael Peer on Sun, 02/19/2017 - 14:58

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DPABI/DPABISurf/DPARSF

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Dear Dr. Yan,

first of all, thank you for the wonderful tools you have created, which provide a great service to our community.

How to view the results of F.nii after ancova analysis

Submitted by gekehe on Fri, 02/17/2017 - 10:42

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DPABI/DPABISurf/DPARSF

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Hi,

Sorry to bother you again. I performed ANCOVA analysis with dpabi and obtained 10 nii images including the F.nii map. But I cannot view the results of F.nii using dpabi viewer. Some parameters of the F.nii can be viewed in dpabi viewer overlay list (see below).