Cortical coherent activity induced by thalamic oscillations.
Alain Destexhe and Agnessa Babloyantz

In: Neural Network Dynamics, Edited by Taylor, J.G., Caianiello, E.R., Cotterill, R.M.J. and Clark, J.W. Berlin, German: Springer-Verlag, 1992. pp. 234-249.

Online article (SpringerLink)
Collective behavior in a simple model of the thalamo-cortical interaction is compared to the various rhythms seen in the electroencephalogram (EEG). Field potentials provide a global view of the network activity and may be characterized by dimensions and Lyapunov exponents. The authors show that the slow rhythms are those corresponding to the highest level of synchronization and coherence.

The thalamic reticular nucleus is a key structure in the generation of brain rhythms. A model of this network is built from recently published voltage clamp data of thalamic neurons. In this model, various rhythms of different degree of spatiotemporal coherence may be observed as a function of the value of a single conductance. Here again, the slower rhythms are the most synchronized.