Journal ArticleDOI
Coupling dynamics in interlimb coordination.
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TLDR
Dynamical modeling and experimental analyses indicate that an intentional parameter phi psi and 2 control parameters omega c (coupled frequency) and delta omega (difference between uncoupled eigen-frequencies) affect phi.Abstract:
In 1:1 frequency locking, the interlimb phase difference phi is an order parameter quantifying the spatial-temporal organization of 2 rhythmic subsystems. Dynamical modeling and experimental analyses indicate that an intentional parameter phi psi (intended coordination mode, phi = 0 degrees or phi = 180 degrees) and 2 control parameters omega c (coupled frequency) and delta omega (difference between uncoupled eigen-frequencies) affect phi. An experiment was conducted on 1:1 frequency locking in which phi psi, omega c, and delta omega were manipulated using a paradigm in which a person swings hand-held pendulums. As delta omega deviated from 0, the observed phi deviated from the phi psi, indicating a displacement in the phi attractor point. The displacements were exaggerated by increasing omega c. The displacements were coordinated with a decrease in the stability of phi and with higher harmonics in power spectrum of phi. Implications of the results for modeling interlimb coordination are discussed.read more
Citations
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Journal ArticleDOI
Rocking together: dynamics of intentional and unintentional interpersonal coordination.
Michael J. Richardson,Kerry L. Marsh,Robert W. Isenhower,Justin R.L. Goodman,Richard Schmidt +4 more
TL;DR: The results of the visual focus manipulations indicate that the stability of a visual interpersonal coupling is mediated by attention and the degree to which an individual is able to detect information about a co-actor's movements.
Book ChapterDOI
Dynamics of Interpersonal Coordination
TL;DR: In this paper, it was shown that when two people are asked to rhythmically coordinate their limbs they show behavioral phenomena identical to those found in bimanual interlimb coordination, which has been mathematically modeled as a dynamical process.
Journal ArticleDOI
Variability and Determinism in Motor Behavior
TL;DR: The authors underscore recent suggestions that alternative (c) is a preferred strategy for the study of many motor behaviors and review the concepts of variability and determinism with respect to postural and rhythmic movements.
Journal ArticleDOI
Evaluating the Dynamics of Unintended Interpersonal Coordination
Richard Schmidt,Beth A. O'Brien +1 more
TL;DR: In this article, a cross-spectral analysis of the movements revealed higher coherence and a distribution of relative phase angles that was dominated by values near 0 deg. and 180 deg.
Journal ArticleDOI
Oscillations of centroid position and surface area of soccer teams in small-sided games
TL;DR: It is concluded that over the course of a whole small-sided game, the forward-backward motion of the centroids is most strongly linearly related and therefore surface area and particularly centroid position may provide a sound basis for a collective variable that captures the dynamics of attacking and defending in soccer at team level.
References
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Book
Numerical Recipes in C: The Art of Scientific Computing
TL;DR: Numerical Recipes: The Art of Scientific Computing as discussed by the authors is a complete text and reference book on scientific computing with over 100 new routines (now well over 300 in all), plus upgraded versions of many of the original routines, with many new topics presented at the same accessible level.
Book
Tutorials in motor behavior
George E. Stelmach,Jean Requin +1 more
TL;DR: Models and theories of motor control, representation and control of movement, and Anatomical and behavior contribution to movement.