The astrocyte as a gatekeeper of synaptic information transfer

Details The astrocyte as a gatekeeper of synaptic information transfer The astrocyte as a gatekeeper of synaptic information transfer

2006-12-07

arxiv.org/abs/q-bio/0612014v1

Biology

Quantitative Biology

Neurons and Cognition

31 pages, 8 figures

Scientific paper

We present a simple biophysical model for the coupling between synaptic transmission and the local calcium concentration on an enveloping astrocytic domain. This interaction enables the astrocyte to modulate the information flow from presynaptic to postsynaptic cells in a manner dependent on previous activity at this and other nearby synapses. Our model suggests a novel, testable hypothesis for the spike timing statistics measured for rapidly-firing cells in culture experiments.

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