Contemporary theories of 1/f noise in motor control |
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Authors: | Diniz Ana Wijnants Maarten L Torre Kjerstin Barreiros João Crato Nuno Bosman Anna M T Hasselman Fred Cox Ralf F A Van Orden Guy C Delignières Didier |
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Institution: | aTechnical University of Lisbon, Portugal;bBehavioural Science Institute, Radboud University Nijmegen, The Netherlands;cMcMaster University, Hamilton, Canada;dUniversity of Cincinnati, OH, United States;eEA 2991 Motor Efficiency and Deficiency, University Montpellier I, Montpellier, France |
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Abstract: | 1/f noise has been discovered in a number of time series collected in psychological and behavioral experiments. This ubiquitous phenomenon has been ignored for a long time and classical models were not designed for accounting for these long-range correlations. The aim of this paper is to present and discuss contrasted theoretical perspectives on 1/f noise, in order to provide a comprehensive overview of current debates in this domain. In a first part, we propose a formal definition of the phenomenon of 1/f noise, and we present some commonly used methods for measuring long-range correlations in time series. In a second part, we develop a theoretical position that considers 1/f noise as the hallmark of system complexity. From this point of view, 1/f noise emerges from the coordination of the many elements that compose the system. In a third part, we present a theoretical counterpoint suggesting that 1/f noise could emerge from localized sources within the system. In conclusion, we try to draw some lines of reasoning for going beyond the opposition between these two approaches. |
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Keywords: | PsycINFO classification: 2300 2330 2340 |
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