Evidence for self-organized criticality in human epileptic hippocampus.

Failure of Adaptive Self-Organized Criticality during Epileptic Seizure Attacks

Critical dynamics are assumed to be an attractive mode for normal brain functioning as information processing and computational capabilities are found to be optimal in the critical state. Recent experimental observations of neuronal activity patterns following power-law distributions, a hallmark of systems at a critical state, have led to the hypothesis that human brain dynamics could be poised...

1/f Dynamic in Complex Visual Search: Evidence for Self-Organized Criticality in Human Perception

Initial Evidence for Self-Organized Criticality in Electric Power System Blackouts

We examine correlations in a time series of electric power system blackout sizes using scaled window variance analysis and R/S statistics. The data shows some evidence of long time correlations and has Hurst exponent near 0.7. Large blackouts tend to correlate with further large blackouts after a long time interval. Similar effects are also observed in many other complex systems exhibiting self...

Experimental evidence of self organized criticality in the stick-slip dynamics of two rough elastic surfaces

An expenment on the stick slip dynamics of two elastic rough surfaces is descnbed. This dynamics produces a self organized cntical state on a wide

Sandpile Models of Self-Organized Criticality

Self-Organized Criticality is the emergence of long-ranged spatio-temporal correlations in nonequilibrium steady states of slowly driven systems without fine tuning of any control parameter. Sandpiles were proposed as prototypical examples of self-organized criticality. However, only some of the laboratory experiments looking for the evidence of criticality in sandpiles have reported a positive...