Frequency Band - Questions about ReHo and fALFF

Submitted by HpaulFr on
Forums
DPABI/DPABISurf/DPARSF

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) ?

ABIDE II dataset (The R-fMRI Maps project), Thanks.

Submitted by usefulbbs on
Forums
The R-fMRI Maps Project

Dear Dr. Yan,

I happen to find that there are probably something wrong with the fMRI data of subject 'ABIDEII-EMC_1_29887' & 'ABIDEII-EMC_1_29888' (the R-fMRI Maps Project). For the EMC_1_29887, all the extracted features and the ROI signals are zero. For the EMC_1_29888, most of the extracted features are zero. Would you mind double checking these data? Thanks a lot.

All the Best,

Liang 

How to perform spectral DCM analysis

Submitted by fffffhhd on
Forums
DPABI/DPABISurf/DPARSF
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
Forums
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

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

Submitted by gekehe on
Forums
DPABI/DPABISurf/DPARSF

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). 

What's wrong with my normalization?

Submitted by leeona07 on
I can't find my password back of the forum "http://rfmri.org/", and I can't creat a new account, so I post my question to the maillist directly. I chose "Reorient Fun" and "Reorient T1" when I process my data using "DPARSF 4.3 Advanced Edition" in DPABI, and set vertical line of the crosshair pass through the midline of the brain in the coronal/ axial view, set the horizontal line both passes through AC and PC point, set the origin in AC point according the courses.

Resting State Preprocessing (Graph Theory)

Submitted by jootje_4 on
Hi, i have a question regarding the preprocessing of my resting state data for a subsequent investigation based on the graph theory. The common preprocessing procedure for a subsequently graph theory based estimation include the following steps: * despike * slice timing correction * 3D motion correction * Regression with motion parameters * Register to MNI Regarding Aurich et al.
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