Controlling synchronization of gamma oscillations by astrocytic modulation in a model hippocampal neural network.

ABSTRACT: Recent in vitro and in vivo experiments demonstrate that astrocytes participate in the maintenance of cortical gamma oscillations and recognition memory. However, the mathematical understanding of the underlying dynamical mechanisms remains largely incomplete. Here we investigate how the interplay of slow modulatory astrocytic signaling with fast synaptic transmission controls coherent oscillations in the network of hippocampal interneurons that receive inputs from pyramidal cells. We show that the astrocytic regulation of signal transmission between neurons improves the firing synchrony and extends the region of coherent oscillations in the biologically relevant values of synaptic conductance. Astrocyte-mediated potentiation of inhibitory synaptic transmission markedly enhances the cohere

SUBMITTER: Makovkin S 

PROVIDER: S-EPMC9050920 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature