Autapse-induced multiple coherence resonance in single neurons and neuronal networks

Ergin Yilmaz (Avtor), Mahmut Ozer (Avtor), Veli Baysal (Avtor), Matjaž Perc (Avtor)

Povzetek

We study the effects of electrical and chemical autapse on the temporal coherence or firing regularity of single stochastic Hodgkin-Huxley neurons and scale-free neuronal networks. Also, we study the effects of chemical autapse on the occurrence of spatial synchronization in scale-free neuronal networks. Irrespective of the type of autapse, we observe autaptic time delay induced multiple coherence resonance for appropriately tuned autaptic conductance levels in single neurons. More precisely, we show that in the presence of an electrical autapse, there is an optimal intensity of channel noise inducing the multiple coherence resonance, whereas in the presence of chemical autapse the occurrence of multiple coherence resonance is less sensitive to the channel noise intensity. At the network level, we find autaptic time delay induced multiple coherence resonance and synchronization transitions, occurring at approximately the same delay lengths. We show that these two phenomena can arise only at a specific range of the coupling strength, and that they can be observed independently of the average degree of the network.

Ključne besede

nevronska dinamika;avtapsa;koherenčna resonanca;brez-skalna mreža;neuronal dynamics;autapse;coherence resonance;scale-free network;

Podatki

Jezik:	Angleški jezik
Leto izida:	2016
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FNM - Fakulteta za naravoslovje in matematiko
UDK:	53
COBISS:	22456072
ISSN:	2045-2322
Št. ogledov:	1151
Št. prenosov:	429
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	nevronska dinamika;avtapsa;koherenčna resonanca;brez-skalna mreža;
URN:	URN:SI:UM:
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-14
Letnik:	ǂVol. ǂ6
Zvezek:	ǂart. no. ǂ30914
Čas izdaje:	2016
DOI:	10.1038/srep30914
ID:	10844186