Cristin-resultat-ID: 1718653
Sist endret: 10. september 2019, 18:20
NVI-rapporteringsår: 2019
Resultat
Vitenskapelig artikkel
2019

Effect of Alpha-Type External Input on Annihilation of Self-Sustained Activity in a Two Population Neural Field Model

Bidragsytere:
  • Zeeshan Afzal
  • Muhammad Yousaf Bhatti
  • Naima Amin
  • Asif Mushtaq og
  • Chahn Yong Jung

Tidsskrift

IEEE Access
ISSN 2169-3536
e-ISSN 2169-3536
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2019
Publisert online: 2019
Trykket: 2019
Volum: 7
Hefte: 1
Sider: 108411 - 108418
Open Access

Importkilder

Scopus-ID: 2-s2.0-85071276364

Beskrivelse Beskrivelse

Tittel

Effect of Alpha-Type External Input on Annihilation of Self-Sustained Activity in a Two Population Neural Field Model

Sammendrag

In the present work, we investigate the annihilation of persistent localized activity states (bumps) in a Wilson-Cowan type two-population neural field model in response to $\alpha $ -type spatio-temporal external input. These activity states serves as working memory in the prefrontal cortex. The impact of different parameters involved in the external input on annihilation of these persistent activity states is investigated in detail. The $\alpha $ -type temporal function in the external input is closer to natural phenomenon as observed in Roth et. al . ( Nature Neuroscience , vol. 19 (2016), 229–307). Two types of eraser mechanism are used in this work to annihilate the spatially symmetric solutions. Initially, if there is an activity in the network, inhibitory external input with no excitatory part and over excitation with no inhibition in the external input can kill the activity. Our results show that the annihilation of persistent activity states using $\alpha $ -type temporal function in the external input is more roubust and more efficient as compare to triangular one as used by Yousaf et al. ( Neural networks. , vol. 46 (2013), pp. 75–90). It is also found that the relative inhibition time constant plays a crucial role in annihilation of the activity. Runge-Kutta fourth order method has been employed for numerical simulations of this work.

Bidragsytere

Zeeshan Afzal

  • Tilknyttet:
    Forfatter
    ved COMSATS University Islamabad

Muhammad Yousaf Bhatti

  • Tilknyttet:
    Forfatter
    ved COMSATS University Islamabad

Naima Amin

  • Tilknyttet:
    Forfatter
    ved COMSATS University Islamabad
Aktiv cristin-person

Asif Mushtaq

  • Tilknyttet:
    Forfatter
    ved Fakultet for lærerutdanning og kunst- og kulturfag ved Nord universitet

Chahn Yong Jung

  • Tilknyttet:
    Forfatter
    ved Sør-Korea
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