Scholar Universe: Michael Breakspear

Partial Publication List

""Dynamic" connectivity in neural systems: theoretical and empirical considerations." Neuroinformatics 2, No. 2 2004, pp. 205-26.
Breakspear, Michael

From Abstract:

to the study of neural systems. A consideration of boot-strap "surrogate data" techniques, which... that techniques based on dynamical interdependence--or "dynamical connectivity"--show significant

"Modulation of excitatory synaptic coupling facilitates synchronization and complex dynamics in a biophysical model of neuronal dynamics." Network (Bristol, England) 14, No. 4 2003, pp. 703-32.
Breakspear, Michael; Terry, John R; Friston, Karl J

From Abstract:

In this paper, complex dynamical synchronization in a non-linear model of a neural system is studied, and the computational significance of the behaviours is explored. The local neural dynamics... coupling between the local networks via weak excitatory-to-excitatory connectivity. It is shown

"An improved algorithm for the detection of dynamical interdependence in bivariate time-series." Biological cybernetics 88, No. 2 2003, pp. 129-36.
Terry, John R; Breakspear, Michael

From Abstract:

dynamical interdependence in weakly coupled systems where previous techniques have failed. We illustrate this by comparison of our algorithm with another commonly used technique when applied to a system

"Modulation of excitatory synaptic coupling facilitates synchronization and complex dynamics in a nonlinear model of neuronal dynamics" Neurocomputing 52-54 2003, pp. 151-158.
Breakspear, M.; Terry, J. R.; Friston, KJ

From Abstract:

We study dynamical synchronization in a model of a neural system constituted by local networks of densely interconnected excitatory and inhibitory neurons. Neural dynamics are determined by voltage... excitatory connectivity. With modulation of this long-range synaptic coupling the system undergoes

"A disturbance of nonlinear interdependence in scalp EEG of subjects with first episode schizophrenia." NeuroImage 20, No. 1 2003, pp. 466-78.
Breakspear, M; Terry, J R; Friston, K J; Harris, A W; Williams, L M; Brown, K; Brennan, J; Gordon, E

From Abstract:

It has been proposed that schizophrenia arises through a disturbance of coupling between large-scale cortical systems. This "disconnection hypothesis" is tested by applying a measure of dynamical... interactions across supraregional brain systems.