Abstract
This paper presents an extension of the Dynamic Causal Modelling (DCM) framework to the analysis of phase-coupled data. A weakly coupled oscillator approach is used to describe dynamic phase changes in a network of oscillators. The use of Bayesian model comparison allows one to infer the mechanisms underlying synchronization processes in the brain. For example, whether activity is driven by master-slave versus mutual entrainment mechanisms. Results are presented on synthetic data from physiological models and on MEG data from a study of visual working memory.
Original language | English |
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Pages (from-to) | 19-30 |
Number of pages | 12 |
Journal | Journal of Neuroscience Methods |
Volume | 183 |
Issue number | 1 |
Early online date | 2 Jul 2009 |
DOIs | |
Publication status | Published - 30 Sep 2009 |
Keywords
- Brain
- Computer Simulation
- Cortical Synchronization
- Humans
- Magnetoencephalography
- Short-Term Memory
- Biological Models
- Nerve Net
- Neurons
- Nonlinear Dynamics