diffusive instability

OSCILLATORY INSTABILITY AND SPONTANEOUS SUBTHRESHOLD OSCILLATIONS IN A NETWORK OF DIFFUSIVELY COUPLED CALCIUM OSCILLATORS

The paper is devoted to the investigation of the dynamics of a network of interacting astrocytes. The astrocytes represent brain glial cells capable to generate chemical activity signals (calcium pulses). Similarly to nerve cells (neurons) the astrocytes form networksof interacting units coupled by means of gap junctions. The junctions represent special protein channels providing the diffusion of chemically active species between neighboring cells.