September 2009

Fwd: What's new for '+"resting" +"fMRI"' in PubMed

Submitted by admin on Sat, 09/05/2009 - 21:02

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Resting-state fMRI topics

question about the result of functional connectivity

Submitted by bdan629 on Sat, 09/05/2009 - 00:11

hello.  I am using the REST program and had a quick question.  I am trying to use the functional connectivity aspect of the program and had a quick question on what it gives me as a result.  I am using the voxel wise function and I am masking a certain region and trying to calculate connectivity between that region and other regions in the brain.  I got the program to work I just am not sure exactly what the colors mean that the result gives me.  Does a lighter color mean that that area is the most similar to my region of interest.  Does it mean that it is more ac

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Resting-state fMRI topics

ROI Regressor calculation using Taylor series

Submitted by marcus on Wed, 09/02/2009 - 21:26

dear rest-team,

I am interested into the adaptation of the time course calculation of different ROI regressors in REST in the following way:
For the reason of small correction of time-shifts the idea is to differentiate the time courses, similar to the idea of taylor series:
               f(t)=f(t=0)+ df/dt I(t=0) + d^2f/d^2t I(t=0)+...

Any feedback towards this idea and its potential implementation possibilities in REST would be highly appreciated,

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Resting-state fMRI topics

method about REST

Submitted by wanghui on Wed, 09/02/2009 - 18:37

i am just reading a review :Default-mode brain dysfunction in mental disorders: A systematic review.  in this article the REST software is mentioned as a methods and measurement models to investigate the DMN.it is said:
  "The assessment of resting brain networks using the BOLD
response may be achieved through a number of methods. Two of
which, region-of-interest (ROI) seed-based correlation approaches
and ICA, are most commonly employed in the literature."

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Resting-state fMRI topics