Influence of synaptic interaction on firing synchronization and spike death in excitatory neuronal networks

Wang, Sheng-Jun,1981-Institute of Theoretical Physics, Lanzhou University, Lanzhou Gansu, China (författare)

New York :American Physical Society through the American Institute of Physics,2008
electronicrdacarrier

We investigate the influence of efficacy of synaptic interaction on firing synchronization in excitatoryneuronal networks. We find spike death phenomena: namely, the state of neurons transits from the limit cycleto a fixed point or transient state. The phenomena occur under the perturbation of an excitatory synapticinteraction, which has a high efficacy. We show that the decrease of synaptic current results in spike deaththrough depressing the feedback of the sodium ionic current. In the networks with the spike death property thedegree of synchronization is lower and insensitive to the heterogeneity of neurons. The mechanism of theinfluence is that the transition of the neuron state disrupts the adjustment of the rhythm of the neuronsoscillation and prevents a further increase of the firing synchronization.

Xu, Xin-Jian,1978-Department of Mathematics, College of Science, Shanghai University, Shanghai, China (författare)
Wu, Zhi-Xi,1981-Umeå universitet,Institutionen för fysik(Swepub:umu)zhwu0001 (författare)
Huang, Zi-GangInstitute of Theoretical Physics, Lanzhou University, Lanzhou Gansu, China (författare)
Wang, Ying-Hai,1940- (författare)
Institute of Theoretical Physics, Lanzhou University, Lanzhou Gansu, ChinaDepartment of Mathematics, College of Science, Shanghai University, Shanghai, China (creator_code:org_t)

Ingår i:Physical Review E. Statistical, Nonlinear, and Soft Matter PhysicsNew York : American Physical Society through the American Institute of Physics78:6, s. 061906-1063-651X1095-3787

Av författaren/redakt...: Wang, Sheng-Jun, ...; Xu, Xin-Jian, 19 ...; Wu, Zhi-Xi, 1981 ...; Huang, Zi-Gang; Wang, Ying-Hai, ...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.