“School of Cognitive Sciences”
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| Paper IPM / Cognitive Sciences / 14599 |
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In recent years, several experimental observations have confirmed the emergence of self-organized criticality (SOC) in the brain at different scales. At large scale, functional brain networks obtained from fMRI data have shown that node-degree distributions and probability
of finding a link versus distance are indicative of scale-free and small-world networks regardless of the tasks in which the subjects were involved. At small scale, the study of neuronal avalanches in networks of living neurons revealed power-law behavior in both spatial and temporal scales. It is also shown that functional networks of the brain are strikingly similar to those derived from the 2D Ising model at critical temperature and the 2D abelian sandpile model.
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