title: The correlation structure of relative phase variability influences the occurrence of phase transition in coordination.
abstract: The coordination dynamics framework has presumed that fluctuations in relative phase series produced in bimanual coordination are random. However, results from recent studies have shown that relative phase series contain 1/f(beta) noise (persistent long-range correlations) instead. Using an incremental protocol in line with the paradigmatic bimanual coordination framework, the author shows that the movement frequencies at which individuals spontaneously switch from anti-phase to in-phase coordination are significantly correlated with the intensity of long-range correlations but not with the amplitude of baseline fluctuations in relative phase. This finding illustrates the tangible relationship between present theoretical perspectives and accumulating evidence for 1/f(beta) noise. The author underscores the heuristic potential of systematic efforts to bridge the gap between present theories and the pervasive findings of 1/f(beta) noise.
authors.affiliation: Sensorimotor Neuroscience Laboratory, McMaster University, Hamilton, Ontario, Canada. torre.kj@gmail.com
authors.forename: Kjerstin
authors.initials: K
authors.lastname: Torre
mesh_terms: D000818:Animals; D016477:Artifacts; D004576:Electromyography; D007839:Functional Laterality; D006801:Humans; D008954:Models, Biological; D009048:Motor Skills / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D011930:Reaction Time