Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.

The timing and dynamics of many diverse behaviors of mammals, e.g., patterns of animal foraging or human communication in social networks exhibit complex self-similar properties reproducible over multiple time scales. In this paper, we analyze spontaneous locomotor activity of healthy individuals re...

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Autores principales:	Jeremi K Ochab, Jacek Tyburczyk, Ewa Beldzik, Dante R Chialvo, Aleksandra Domagalik, Magdalena Fafrowicz, Ewa Gudowska-Nowak, Tadeusz Marek, Maciej A Nowak, Halszka Oginska, Jerzy Szwed
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/443f50b4f7eb4999bd5d6ffaaf17098d
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spelling	oai:doaj.org-article:443f50b4f7eb4999bd5d6ffaaf17098d2021-11-25T06:00:42ZScale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.1932-620310.1371/journal.pone.0107542https://doaj.org/article/443f50b4f7eb4999bd5d6ffaaf17098d2014-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0107542https://doaj.org/toc/1932-6203The timing and dynamics of many diverse behaviors of mammals, e.g., patterns of animal foraging or human communication in social networks exhibit complex self-similar properties reproducible over multiple time scales. In this paper, we analyze spontaneous locomotor activity of healthy individuals recorded in two different conditions: during a week of regular sleep and a week of chronic partial sleep deprivation. After separating activity from rest with a pre-defined activity threshold, we have detected distinct statistical features of duration times of these two states. The cumulative distributions of activity periods follow a stretched exponential shape, and remain similar for both control and sleep deprived individuals. In contrast, rest periods, which follow power-law statistics over two orders of magnitude, have significantly distinct distributions for these two groups and the difference emerges already after the first night of shortened sleep. We have found steeper distributions for sleep deprived individuals, which indicates fewer long rest periods and more turbulent behavior. This separation of power-law exponents is the main result of our investigations, and might constitute an objective measure demonstrating the severity of sleep deprivation and the effects of sleep disorders.Jeremi K OchabJacek TyburczykEwa BeldzikDante R ChialvoAleksandra DomagalikMagdalena FafrowiczEwa Gudowska-NowakTadeusz MarekMaciej A NowakHalszka OginskaJerzy SzwedPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 9, p e107542 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jeremi K Ochab Jacek Tyburczyk Ewa Beldzik Dante R Chialvo Aleksandra Domagalik Magdalena Fafrowicz Ewa Gudowska-Nowak Tadeusz Marek Maciej A Nowak Halszka Oginska Jerzy Szwed Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
description	The timing and dynamics of many diverse behaviors of mammals, e.g., patterns of animal foraging or human communication in social networks exhibit complex self-similar properties reproducible over multiple time scales. In this paper, we analyze spontaneous locomotor activity of healthy individuals recorded in two different conditions: during a week of regular sleep and a week of chronic partial sleep deprivation. After separating activity from rest with a pre-defined activity threshold, we have detected distinct statistical features of duration times of these two states. The cumulative distributions of activity periods follow a stretched exponential shape, and remain similar for both control and sleep deprived individuals. In contrast, rest periods, which follow power-law statistics over two orders of magnitude, have significantly distinct distributions for these two groups and the difference emerges already after the first night of shortened sleep. We have found steeper distributions for sleep deprived individuals, which indicates fewer long rest periods and more turbulent behavior. This separation of power-law exponents is the main result of our investigations, and might constitute an objective measure demonstrating the severity of sleep deprivation and the effects of sleep disorders.
format	article
author	Jeremi K Ochab Jacek Tyburczyk Ewa Beldzik Dante R Chialvo Aleksandra Domagalik Magdalena Fafrowicz Ewa Gudowska-Nowak Tadeusz Marek Maciej A Nowak Halszka Oginska Jerzy Szwed
author_facet	Jeremi K Ochab Jacek Tyburczyk Ewa Beldzik Dante R Chialvo Aleksandra Domagalik Magdalena Fafrowicz Ewa Gudowska-Nowak Tadeusz Marek Maciej A Nowak Halszka Oginska Jerzy Szwed
author_sort	Jeremi K Ochab
title	Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
title_short	Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
title_full	Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
title_fullStr	Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
title_full_unstemmed	Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
title_sort	scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/443f50b4f7eb4999bd5d6ffaaf17098d
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Scale-free fluctuations in behavioral performance: delineating changes in spontaneous behavior of humans with induced sleep deficiency.

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