Self-organising mechanism of neuronal avalanche activity
| dc.creator | Juanico, Dranreb Earl | |
| dc.date | 2007-01-11 | |
| dc.date.accessioned | 2026-07-07T07:40:02Z | |
| dc.date.available | 2026-07-07T07:40:02Z | |
| dc.description | A self-organising model is proposed to explain the criticality in cortical networks deduced from recent observations of neuronal avalanches. Prevailing understanding of self-organised criticality (SOC) dictates that conservation of energy is essential to its emergence. Neuronal networks however are inherently non-conservative as demonstrated by microelectrode recordings. The model presented here shows that SOC can arise in non-conservative systems as well, if driven internally. Evidence suggests that synaptic background activity provides the internal drive for non-conservative cortical networks to achieve and maintain a critical state. SOC is robust to any degree $η\in (0,1]$ of background activity when the network size $N$ is large enough such that $ηN\sim 10^3$. For small networks, a strong background leads to epileptiform activity, consistent with neurophysiological knowledge about epilepsy. | |
| dc.description | submitted to Europhys. Lett. (6 pages, 4 figures) | |
| dc.identifier | https://arxiv.org/abs/nlin/0701020 | |
| dc.identifier | http://arxiv.org/abs/nlin/0701020 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121668 | |
| dc.subject | Adaptation and Self-Organizing Systems | |
| dc.subject | Neurons and Cognition | |
| dc.title | Self-organising mechanism of neuronal avalanche activity | |
| dc.type | text |