When do chemical synapses modulate the formation of spiral waves?

(UM)

When do chemical synapses modulate the formation of spiral waves?

Hajian, Dorsa Nezhad ...

We study the formation and suppression of spiral wave patterns in a lattice of memristive FitzHugh-Nagumo neurons that are connected through chemical coupling. While earlier works focused ... predominantly on diffusive coupling, we focus on various parameters that determine the properties of chemical synapses, in particular their firing threshold, the sigmoidal slope, and the reversal potential. Based on physiologically plausible scenarios, we also aim to determine the most probable realistic values of these parameters that facilitate the formation of spiral waves. Furthermore, we study the destabilizing impact of external direct and Faradaic currents on spiral wave patterns, showing that they commonly convert into other turbulent patterns or vanish altogether. Interestingly, however, during the destabilization process, counter-rotating spirals that then collide and generate complex patterns can also be observed.

Source: Nonlinear dynamics. - ISSN 0924-090X (Vol. 111, iss. 24, Dec. 2023, str. 22551-22565)

Type of material - article, component part

Publish date - 2023

Language - english

COBISS.SI-ID - 181126915

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Author
Hajian, Dorsa Nezhad | Parastesh, Fatemeh | Rajagopal, Karthikeyan | Jafari, Sajad | Perc, Matjaž

Author	Hajian, Dorsa Nezhad ...
Title	When do chemical synapses modulate the formation of spiral waves?
Publication date	2023-10-30
COBISS.SI-ID	181126915
Publication version in repository	Unidentified
Publication licence	Unidentified
Embargo	Unidentified

Project(s) from which the publication was funded

Title	Acronym	Project ID	Funder
Računsko intenzivni kompleksni sistemi		P1-0403-2019	Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Tekmovalna hierarhična omrežja od športa do evolucije kulture		N1-0232-2022	Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije

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source: Nonlinear dynamics. - ISSN 0924-090X (Vol. 111, iss. 24, Dec. 2023, str. 22551-22565)

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Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Hajian, Dorsa Nezhad
Parastesh, Fatemeh
Rajagopal, Karthikeyan
Jafari, Sajad
Perc, Matjaž	23428

Source: Personal bibliographies and: SICRIS

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