Noise-induced memory in extended excitable systems

Authors
Chialvo, DR Cecchi, GA Magnasco, MO
Citation
Dr. Chialvo et al., Noise-induced memory in extended excitable systems, PHYS REV E, 61(5), 2000, pp. 5654-5657
Citations number
10
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
61
Issue
5
Year of publication
2000
Part
B
Pages
5654 - 5657
Database
ISI
SICI code
1063-651X(200005)61:5<5654:NMIEES>2.0.ZU;2-3
Abstract
We describe a form of memory exhibited by extended excitable systems driven by stochastic fluctuations. Under such conditions, the system self-organiz es into a state characterized by power-law correlations, thus retaining lon g-term memory of previous states. The exponents are robust and model indepe ndent. We discuss implications of these results for the functioning of cort ical neurons as well as for networks of neurons.