BRAPH | Shrikanth Kulashekhar | Activity http://braph.org/members/shrikanth-kulashekharsissa-it/activity/ Activity feed for Shrikanth Kulashekhar. Wed, 12 Feb 2025 08:45:32 +0000 https://buddypress.org/?v=12.0.0 en-US 30 hourly 2 e05b47f3c91ea307da9ebaff694c0e78 Shrikanth Kulashekhar replied to the topic Graph analysis with the matrices obtained from fMRI data in the forum General Help (Braph 2.0) http://braph.org/forums/topic/graph-analysis-with-the-matrices-obtained-from-fmri-data/#post-149204 Thu, 12 May 2022 15:06:49 +0000 Hi Mite,

Thank you for taking the extra effort to help with the analysis. I have sent you an email.

Shrikanth

]]> 19b33949588bbd28f4f2b4bec0098164 Shrikanth Kulashekhar replied to the topic Graph analysis with the matrices obtained from fMRI data in the forum General Help (Braph 2.0) http://braph.org/forums/topic/graph-analysis-with-the-matrices-obtained-from-fmri-data/#post-149022 Tue, 10 May 2022 11:35:21 +0000 Hi Mite,

I was wondering if you had time to think about my query, on how to proceed from the group DCM to graphs. If the estimated effective connectivity matrix from DCM can be interpreted as a weighted adjacency matrix of a directed graph between the brain regions. For the Braph pipeline implementation, the group DCM could be treated as a single…[Read more]

]]> 859d41a1b85a5d1a4749760d6791c3dc Shrikanth Kulashekhar replied to the topic Graph analysis with the matrices obtained from fMRI data in the forum General Help (Braph 2.0) http://braph.org/forums/topic/graph-analysis-with-the-matrices-obtained-from-fmri-data/#post-148685 Fri, 06 May 2022 12:00:28 +0000 Hi Mite,

Thats great! Thank you.

We want to analyse the graphs and its metrics using the full A-B-C connectivity matrices.

I have a basic question about using the matrices for each subject, would it be possible to just use the (single) group level A-B-C matrices for the graph analysis?

The reason I ask is because in our DCM analysis we did not…[Read more]

]]> b7f45941b3854740dc327147bd33a389 Shrikanth Kulashekhar replied to the topic Graph analysis with the matrices obtained from fMRI data in the forum General Help (Braph 2.0) http://braph.org/forums/topic/graph-analysis-with-the-matrices-obtained-from-fmri-data/#post-148573 Thu, 05 May 2022 11:40:25 +0000 Hi Mite,

Thank you for the information and help.

Since I am short on time to perform the graph analysis (for a revision), I can implement the pipleine for the analysis, with your help.

I downloaded the latest version of Braph 2 from the repository. From its folders I can see that the code for graph metrics and analysis is already there.

To…[Read more]

]]> 499388e4aa3d7f7a922fd6299aef0947 Shrikanth Kulashekhar started the topic Graph analysis with the matrices obtained from fMRI data in the forum General Help (Braph 2.0) http://braph.org/forums/topic/graph-analysis-with-the-matrices-obtained-from-fmri-data/ Wed, 04 May 2022 15:49:44 +0000 Dear Braph Community,

My question if about using graph analysis on fMRI data. I performed an effective connectivity analysis using DCM and have connectivity configurations in terms of A,B and C matrices. I am wondering if I can now use a graph analysis on the DCM matrices to obtain graph metrics of the node interactions and a formal graphical…[Read more]

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