dorsal/arxiv
View SchemaDoes the 1/f frequency-scaling of brain signals reflect self-organized critical states?
| Authors | Claude Bedard, Helmut Kroeger, Alain Destexhe |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0608026 |
| URL | https://arxiv.org/abs/q-bio/0608026 |
| DOI | 10.1103/PhysRevLett.97.118102 |
| Journal | Physical Review Letters 97: 118102, 2006. |
Abstract
Many complex systems display self-organized critical states characterized by 1/f frequency scaling of power spectra. Global variables such as the electroencephalogram, scale as 1/f, which could be the sign of self-organized critical states in neuronal activity. By analyzing simultaneous recordings of global and neuronal activities, we confirm the 1/f scaling of global variables for selected frequency bands, but show that neuronal activity is not consistent with critical states. We propose a model of 1/f scaling which does not rely on critical states, and which is testable experimentally.
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"abstract": "Many complex systems display self-organized critical states characterized by\n1/f frequency scaling of power spectra. Global variables such as the\nelectroencephalogram, scale as 1/f, which could be the sign of self-organized\ncritical states in neuronal activity. By analyzing simultaneous recordings of\nglobal and neuronal activities, we confirm the 1/f scaling of global variables\nfor selected frequency bands, but show that neuronal activity is not consistent\nwith critical states. We propose a model of 1/f scaling which does not rely on\ncritical states, and which is testable experimentally.",
"arxiv_id": "q-bio/0608026",
"authors": [
"Claude Bedard",
"Helmut Kroeger",
"Alain Destexhe"
],
"categories": [
"q-bio.NC",
"q-bio.PE"
],
"doi": "10.1103/PhysRevLett.97.118102",
"journal_ref": "Physical Review Letters 97: 118102, 2006.",
"title": "Does the 1/f frequency-scaling of brain signals reflect self-organized critical states?",
"url": "https://arxiv.org/abs/q-bio/0608026"
},
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