Spatial mode dynamics of a thalamo-cortical network

Gene V. Wallenstein

doi:10.1117/12.162723

5 November 1993 Spatial mode dynamics of a thalamo-cortical network

Gene V. Wallenstein

Proceedings Volume 2036, Chaos in Biology and Medicine; (1993) https://doi.org/10.1117/12.162723
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

In this paper we extend recent work concerning the emergence of macroscopic patterns in a thalamo-cortical network. A small number of thalamic `cells' were used to drive a network of cortical cells structured on a square lattice consisting of 2-torus connectivity. It was previously shown that the network can exhibit irregular and periodic spatial behavior with the latter including both standing and traveling waves. A systematic analysis of this network across a wide range of driving frequencies revealed several properties of its spatiotemporal behavior which resemble those of the 8 - 12 Hz cortical alpha rhythm. We extend these results by examining the time-dependent amplitude of the spatial modes of this network and derive a system of ODEs to characterize their dynamics. Finally, we investigate the relationship between changes at the microscopic (cellular) level of this system and their effect on these macroscopic parameters.

Citation Download Citation

Gene V. Wallenstein "Spatial mode dynamics of a thalamo-cortical network", Proc. SPIE 2036, Chaos in Biology and Medicine, (5 November 1993); https://doi.org/10.1117/12.162723

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