Towards a "gold-standard" approach to address the presence of long-range auto-correlation in physiological time series

Journal of Neuroscience Methods
F CrevecoeurT Lejeune

Abstract

Series of motor outputs generated by cyclic movements are typically complex, suggesting that the correlation function of the time series spans over a large number of consecutive samples. Famous examples include inter-stride intervals, heartbeat variability, spontaneous neural firing patterns or motor synchronization with external pacing. Long-range correlations are potentially important for fundamental research, as the neural and biomechanical mechanisms generating these correlations remain unknown, and for clinical applications, given that the loss of long-range correlation may be a marker of disease. However, no systematic approach or robust analysis methods have yet been used to support the study of correlation functions in physiological series. This study investigates four selected methods (the Hurst exponent, the power spectral density analysis, the rate of moment convergence and the multiscale entropy methods). We present the result of each analysis performed on artificial computer-generated series in which the auto-correlation function is known, and then on time series extracted from gait and upper limb rhythmic movements. Our results suggest that combined analysis using the Hurst exponent and the power spectral density ...Continue Reading

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Citations

May 29, 2013·Annals of Biomedical Engineering·Thibault B WarlopThierry M Lejeune
Dec 25, 2013·Annals of Biomedical Engineering·Benjamin BollensThierry M Lejeune
Oct 4, 2012·Computer Methods in Biomechanics and Biomedical Engineering·Th WarlopTh Lejeune
Mar 25, 2014·Doklady Biological Sciences : Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections·V A Nepomnyashchikh, A S Opaev
Jun 6, 2014·Perceptual and Motor Skills·Timothy R LindsayStephen J McGregor
Jun 9, 2012·Journal of Neuroscience Methods·Luc Berthouze, Simon F Farmer
Jun 7, 2011·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ana CatarinoHoward Ring
Nov 12, 2013·Human Movement Science·Joseph P Cusumano, Jonathan B Dingwell
Jul 31, 2014·Computer Methods in Biomechanics and Biomedical Engineering·T WarlopT Lejeune
Nov 29, 2017·PloS One·Frédéric DierickFabien Buisseret
Feb 23, 2017·Journal of Neuroengineering and Rehabilitation·Thibault WarlopAnne Jeanjean
Jun 10, 2017·Journal of Autism and Developmental Disorders·David M SimonCarissa J Cascio
Dec 21, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Sergio ArianosChristian Türk
May 6, 2021·Doklady Biological Sciences : Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections·M E Diatroptov, A V Surov

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