Blogs

normalization problem with dpabi

using dynamic features in GraphVar

Hello,

I was not able to find the "dynamic" windows in the most recent version
of GraphVar 6.02.
Have i missed anything?

Thanks.

ICC for rsfMRI

Dear Dr Yan,

I am trying to run ICC for my resting state images, but would like some more information about how best to do this.

Can it be used on raw images or just con images? If it can be used on raw images can you tell me the best way to input them. I tried a 4D nifti file - it ran but it gave a very odd image.

Apologies if there is a guide, I can't seem to find one.

Many Thanks

Sarah

GraphVar

Hello sir,

I am trying my best to calculate graph metrics in graphvar using MATLAB2015a .I have changed my variables like subject ids as s1,s2,etc.also the male female varibles used is(0/1).

But still I am getting this error.Please help me fixing it soon.

reviewer questions

Dear Sir,

I am re-posting this question as I have not yet received an answer.

We have several reviewer questions that I would kindly ask your assistance with and which relate to the use of your very valuable DPARSF toolbox.

1)Using DPARSF we have bandpass filtered at 0.01-0.1 Hz. The reviewer requested to precisely state the 'type of filter". Was the filtering based on a 'discrete cosine transform' as done in SPM with the given frequencies used as cut-off, I believe this is correct, but just wanted to confirm.

motion regression

Dear Sir,

In your DPARSF toolbox I selected "motion scrubbing" and selected the FD (power) option.
The reviewer of our manuscript asked what the assumed head radius was? Would you be able to help with this?
With kind regards,
Catherine

band pass filter and degrees of freedom

Dear Sir,

We have several reviewer questions that I would kindly ask your assistance with and which relate to the use of your very valuable DPARSF toolbox.

1)Using DPARSF we have bandpass filtered at 0.01-0.1 Hz. The reviewer requested to precisely state the 'type of filter". Was the filtering based on a 'discrete cosine transform' as done in SPM with the given frequencies used as cut-off?

Question about output of functional connectivity analysis

Hello,

We recently used REST to run a seed-to-voxel connectivity analysis with
various ROIs. We are interested in extracting the correlation coefficients
for each subject so that we can look for relations with symptom severity.
For each subject, there is an ROI_FC_map.txt file. There are 12 columns
(for each ROI) and 160 rows (for each time point). However, I am confused
since many of the values are greater than 1. Are these values supposed to
be correlation coefficients (between -1 and +1)? Did we mess something up?

Thanks,

About courses

Dear R-fMRI team,

I would like to now if there is any upcoming course about DPARSF.

Thank you a lot,

Pages

Subscribe to RSS - blogs