Title
Product Hidden Markov Models For Subject-Based Dynamic Functional Connectivity Analysis Of The Resting State Brain
Abstract
The study of time-varying connectivity networks is a young but growing field of research in functional MRI, where dynamic Bayesian networks (DBNs) should play an important role for many reasons. In this paper, Product Hidden Markov Models (PHMMs), an instance of DBNs, are introduced to capture the dynamic functional connectivity (DFC) of spontaneous co-activation maps (SAMs), including resting state networks (RSNs), at the subject level. The abilities of PHMMs to learn dependencies between interacting processes are illustrated to compare and analyze inter-sessions DFCs of healthy subjects taking medication (methylphenidate) vs a placebo. PHMMs are presented as a novel methodology for characterization of and knowledge extraction from the DFC.
Year
DOI
Venue
2016
10.1109/ISBI.2016.7493503
2016 IEEE 13TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI)
Keywords
Field
DocType
Dynamic functional connectivity, Dynamic Bayesian network, Resting state fMRI, Product HMM
Variable-order Bayesian network,Computer science,Resting state fMRI,Taking medication,Knowledge extraction,Artificial intelligence,Hidden Markov model,Dynamic functional connectivity,Machine learning,Dynamic Bayesian network
Conference
ISSN
Citations 
PageRank 
1945-7928
1
0.37
References 
Authors
4
4
Name
Order
Citations
PageRank
Marion Sourty170.84
Laurent Thoraval2427.00
Jean-Paul Armspach322126.60
j foucher481.25