Temporal asymmetry in Hebbian regulation of pulse coupling in the network of excitable chemical cells
Ivan S. Proskurkin,
Vladimir K. Vanag and
Anastasia I. Lavrova
Chaos, Solitons & Fractals, 2024, vol. 185, issue C
Abstract:
The effect of temporal asymmetry of pre- and postsynaptic spiking on the dynamics of a neuromorphic chemical network that incorporates Hebbian regulation of coupling strength is considered both theoretically and experimentally. The system under study mimics the synaptically coupled neuronal unit by four interconnected excitable chemical cells in which the Belousov–Zhabotinsky occurs. The key feature consists of incorporating a “presynaptic structure” (so-called “M”-point), which is positioned before the chemical synapse and realizes specific time delays between the occurrence of a spike in the cell representing the “presynaptic chemical neuron” and the corresponding perturbation of its recipient cell (“postsynaptic chemical neuron”). Being combined with the pulsatory modulations from two additional cells, the considered system exhibits a rich variety of dynamic modes. Their manifestation is explored by numerical simulation of the chemically relevant nonlinear dynamical system with two control parameters (the localization of the “M” point and the period of external excitation). The theoretical predictions are validated by direct experimental investigation. It confirmed that the existence of the Hebb mode can be determined by the localization of point “M”, which allows for manipulating by desired features of memory formation in the chemical neuromorphic system.
Keywords: Hebbian rule; Chemical reactions; Chemical computing; Dynamical systems (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:
Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960077924006672
Full text for ScienceDirect subscribers only
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:185:y:2024:i:c:s0960077924006672
DOI: 10.1016/j.chaos.2024.115115
Access Statistics for this article
Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros
More articles in Chaos, Solitons & Fractals from Elsevier
Bibliographic data for series maintained by Thayer, Thomas R. ().