Neuronal activity differs between wakefulness and sleep states. In contrast, an attractor
state, called self-organized critical (SOC), was proposed to govern brain dynamics because …

Sleep encompasses approximately a third of our lifetime, yet its purpose and biological
function are not well understood. Without sleep optimal brain functioning such as …

Background Scale-invariant neuronal avalanches have been observed in cell cultures and
slices as well as anesthetized and awake brains, suggesting that the brain operates near …

Brain activity displays a large repertoire of dynamics across the sleep-wake cycle and even
during anesthesia. It was suggested that criticality could serve as a unifying principle …

Self-organized critical states are found in many natural systems, from earthquakes to forest
fires, they have also been observed in neural systems, particularly, in neuronal cultures …

In recent years, numerous studies have found that the brain at resting state displays many
features characteristic of a critical state. Here we examine whether stimulus-evoked activity …

Background Many systems in nature are characterized by complex behaviour where large
cascades of events, or avalanches, unpredictably alternate with periods of little activity …

In self-organized critical (SOC) systems avalanche size distributions follow power-laws.
Power-laws have also been observed for neural activity, and so it has been proposed that …

Spontaneous fluctuations in neuronal activity emerge at many spatial and temporal scales in
cortex. Population measures found these fluctuations to organize as scale-invariant …

What constitutes normal cortical dynamics in healthy human subjects is a major question in
systems neuroscience. Numerous in vitro and in vivo animal studies have shown that …