error of two sample t-test by dpabi

Submitted by Carolineqiu on Wed, 03/22/2017 - 17:03

Hi,

I'm doing a research about  ROIs  FC, and try to compare the  zROIFCMap with two sample t-test by dpabi.

but during the anlysis ,there is an error as blow:

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Help: error encountered when reorienting images using dpabi

Submitted by lucille on Mon, 03/20/2017 - 15:04

Hi, dear Yan and members,

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About Power_Neuron_264ROIs_Radius5_Mask

Submitted by Spiral on Mon, 03/20/2017 - 03:18

Dear all,

        Recently, I calculated the  large-scale FC by used Power's mask. But after that, I suddenly found out that the node of this mask does not have a specific name to indicate which brain area it belongs.

So, for now, I am really confused, and cannot found the details about the node of mask.

        Looking forward all fellow's help!

 

Regards

Xin

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fMRI相关分析的时候，自相关影响的去除

Submitted by yubing on Fri, 03/17/2017 - 08:21

各位专家，大家好

我在做fMRI相关分析的时候，有文章提到说，计算两个时间序列相关性的时候，需要考虑到时间序列内部自相关(autocorrelation的影响

文章内容如下

"Because individual time points in the BOLD signal are not statistically independent, the degrees of freedom must be corrected according to Bartlett’s theory"（Michael D. Fox，PNAS，2005）

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Question about ANOVA analysis

Submitted by mitaomian on Wed, 03/15/2017 - 15:27

Dear Yan,

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Bandpass filtering for Reho in DPARSF : which folder should i use ?

Submitted by HpaulFr on Tue, 03/14/2017 - 15:48

Hi everybody, our team (Lapsyde, Laboratory for the Psychology of Child Development and Education, Paris, France) have some questions about DPARSF toolbox and bandpass filtering for ReHo analysis.

 

 

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Extracting data

Submitted by hpsig86 on Thu, 03/09/2017 - 19:30

Hi.

Is it possible to extract local metric data (e.g., local efficiency values) from a single group regression analysis post regressing out nuisance variables? I.e. in a similar way as to select only control group or only patient group in group analysis at the bottom of the results viewer (I ran two separate analyses). That way I could plot local efficiency values on a specific node against a clinical measure.

Many thanks,

Hilmar

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Working in native space

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

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

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Building Connectivity Matrix from Task-based fMRI

Submitted by teodorast on Wed, 03/08/2017 - 01:37

Hello!

I am new to analyzing network data, so i am a bit unsure how to turn raw nifti files which contain task based data into readable files to input into GraphVar for building a connectivity matrix. help?

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