Article Dans Une Revue Physical Review Letters Année : 2024

Discrete Synaptic Events Induce Global Oscillations in Balanced Neural Networks

Résumé

Despite the fact that neural dynamics is triggered by discrete synaptic events, the neural response is usually obtained within the diffusion approximation representing the synaptic inputs as Gaussian noise. We derive a mean-field formalism encompassing synaptic shot noise for sparse balanced neural networks. For low (high) excitatory drive (inhibitory feedback) global oscillations emerge via continuous or hysteretic transitions, correctly predicted by our approach, but not from the diffusion approximation. At sufficiently low in-degrees the nature of these global oscillations changes from drift driven to cluster activation.
Fichier principal
Vignette du fichier
lett.pdf (1) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04943715 , version 1 (12-02-2025)

Licence

Identifiants

Citer

Denis S Goldobin, Matteo Di Volo, Alessandro Torcini. Discrete Synaptic Events Induce Global Oscillations in Balanced Neural Networks. Physical Review Letters, 2024, 133 (23), pp.238401. ⟨10.1103/PhysRevLett.133.238401⟩. ⟨hal-04943715⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

More