Unraveling the fluctuations of animal motor activity

Details Unraveling the fluctuations of animal motor activity Unraveling the fluctuations of animal motor activity

2009-04-14

arxiv.org/abs/0904.2177v1

Physics

Physics and Society

Scientific paper

Human motor activities are known to exhibit scale-free long-term correlated fluctuations over a wide range of timescales, from few to thousands of seconds. The fundamental processes originating such fractal-like behavior are not yet understood. To untangle the most significant features of these fluctuations, in this work the problem is oversimplified by studying a much simpler system: the spontaneous motion of rodents, recorded during several days. The analysis of the animal motion reveals a robust scaling comparable with the results previously reported in humans. It is shown that the most relevant features of the experimental results can be replicated by the statistics of the activation-threshold model proposed in another context by Davidsen and Schuster.

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