Summary
2011 International Symposium on Nonlinear Theory and Its Applications
2011
Session Number:C1L-B
Session:
Number:C1L-B2
Consistency in neuronal avalanche induced by spike-timing-dependent plasticity
Shuhei Ohno, Hideyuki Kato, Kantaro Fujiwara, Tohru Ikeguchi,
pp.589-592
Publication Date:2011/9/4
Online ISSN:2188-5079
Summary:
Recent studies in the field of neuroscience have reported the observation of neuronal avalanches in cultured cortical slices of the brain. The neuronal avalanches are considered as one of the mechanisms of memory functions in the brain. We have already shown that the spike-timing-dependent plasticity (STDP) can reproduce network activities with neuronal-avalanche properties, which indicates that STDP is one of the mechanisms to produce neuronal avalanches. On the other hand, "consistency" is another essential key for information transmission in biological and physiological systems and also for the reproducibility of spatiotemporal patterns in the brain activities. Therefore, one of the possible hypotheses is that the neuronal avalanche is a kind of consistency in the brain. In this paper, to investigate whether the neuronal avalanches show consistency or not, we analyze the activity patterns emerging in the STDP network from the viewpoint of consistency. As a result, it is shown that the activity patterns in the STDP network have high consistency and STDP transformation increases the consistency of the avalanche patterns.