Usher, Marius and Stemmler, Martin and Olami, Zeev (1995) Dynamic Pattern Formation Leads to 1/f Noise in Neural Populations. Physical Review Letters, 74 (2). pp. 326-329. ISSN 0031-9007. doi:10.1103/PhysRevLett.74.326. https://resolver.caltech.edu/CaltechAUTHORS:20130816-103233543
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Abstract
We present a generic model that generates long-range (power-law) temporal correlations, 1/f noise, and fractal signals in the activity of neural populations. The model consists of a two-dimensional sheet of pulse coupled nonlinear oscillators (neurons) driven by spatially and temporally uncorrelated external noise. The system spontaneously breaks the translational symmetry, generating a metastable quasihexagonal pattern of high activity clusters. Fluctuations in the spatial pattern cause these clusters to diffuse. The macroscopic dynamics (diffusion of clusters) translate into 1/f power spectra and fractal (power-law) pulse distributions on the microscopic scale of a single unit.
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| Additional Information: | © 1995 The American Physical Society. Received 7 February 1994; published in the issue dated 9 January 1995. We wish to thank S. Alexander, M. Cross, C. Koch, J. Hopfield, M. Herrmann, and I. Procaccia for their insights and comments. This work was supported by a Myron A. Bantrell Research Fellowship, the Howard Hughes Medical Institute, and the AFOSR. | |||||||||
| Group: | Koch Laboratory (KLAB) | |||||||||
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| Issue or Number: | 2 | |||||||||
| Classification Code: | PACS: 87.10.+e | |||||||||
| DOI: | 10.1103/PhysRevLett.74.326 | |||||||||
| Record Number: | CaltechAUTHORS:20130816-103233543 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130816-103233543 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 40531 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | KLAB Import | |||||||||
| Deposited On: | 26 Jan 2008 04:16 | |||||||||
| Last Modified: | 09 Nov 2021 23:49 |
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