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Synaptic delays modulate population phase and amplitude responses in oscillatory excitatory-inhibitory networks — arXiv:2608.15077

Source: arXiv (en)
Original: https://arxiv.org/abs/2608.15077
License (as archived): CC0-1.0
Archived: 2026-10-19T02:02:34.330Z
SHA-256 of the archived text: 249b6a1d41355fe1b937d6bab9e59dd1192a9490be4c266cdce9c3bd78123289
Stable URL of this page: https://metraipolis.com/documento/dc_a3d82c331fa4

How to cite

Synaptic delays modulate population phase and amplitude responses in oscillatory excitatory-inhibitory networks — arXiv:2608.15077 — arXiv (en), https://arxiv.org/abs/2608.15077 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_a3d82c331fa4 (Metraipolis archive dc_a3d82c331fa4, sha256 249b6a1d41355fe1b937d6bab9e59dd1192a9490be4c266cdce9c3bd78123289)

BibTeX

@misc{dca3d82c331fa4,
  title = {Synaptic delays modulate population phase and amplitude responses in oscillatory excitatory-inhibitory networks — arXiv:2608.15077},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2608.15077},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_a3d82c331fa4; sha256 249b6a1d41355fe1b937d6bab9e59dd1192a9490be4c266cdce9c3bd78123289},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2608.15077. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Synaptic delays are fundamental determinants of neuronal communication and can profoundly influence the emergence and stability of cortical oscillations. Although their role in shaping network synchronization is well established, how synaptic delays regulate the collective response of neuronal populations to transient perturbations remains poorly understood. Here, we investigate the effects of synaptic delays on the phase and amplitude responses of oscillatory activity in a conductance-based excitatory-inhibitory spiking network operating in the pyramidal-interneuron gamma (PING) regime. By systematically varying the synaptic delay and applying brief external perturbations to the excitatory population, inhibitory population, or the entire network, we computed network phase response curves (nPRCs) and network amplitude response curves (nARCs) to quantify changes in oscillation timing and population coherence. Increasing synaptic delay slowed network oscillations while enhancing population synchrony, demonstrating a trade-off between oscillation frequency and coherence. Excitatory perturbations produced relatively robust phase responses across delays but exhibited a pronounced delay-dependent reduction in amplitude enhancement. In contrast, inhibitory perturbations generated substantially stronger delay-dependent modulation of both phase resetting and amplitude suppression, whereas whole-network stimulation combined features of both excitatory and inhibitory responses. Taken toghether, these findings identify synaptic delay as a key parameter governing the balance between phase resetting and amplitude modulation and provide a computational framework for understanding delay-dependent control of oscillatory brain networks.

Tema degli esploratori: scienze della vita e salute (retro-catalogo arXiv: annunci del 2026-08-18 in q-bio.NC).
Categorie arXiv: Neurons and Cognition (q-bio.NC).
Pagina del lavoro: https://arxiv.org/abs/2608.15077 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-19T01:05:51.678Z dalla pagina https://arxiv.org/catchup/q-bio.NC/2026-08-18?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).