4.2 Article

Complexity matching in side-by-side walking

Journal

HUMAN MOVEMENT SCIENCE
Volume 54, Issue -, Pages 125-136

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.humov.2017.04.008

Keywords

Synchronized walking; Complexity matching; Multifractals; Cross-correlation

Funding

  1. University of Montpellier - France
  2. Campus France [Doctoral Dissertation Fellowship] [826818E]

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Interpersonal coordination represents a very common phenomenon in daily-life activities. Three theoretical frameworks have been proposed to account for synchronization processes in such situations: the information processing approach, the coordination dynamics perspective, and the complexity matching effect. On the basis of a theoretical analysis of these frameworks, we propose three statistical tests that could allow to distinguish between these theoretical hypotheses: the first one is based on multifractal analyses, the second and the third ones on cross-correlation analyses. We applied these tests on series collected in an experiment where participants were instructed to walk in synchrony. We contrasted three conditions: independent walking, side-by-side walking, and arm-in-arm walking. The results are consistent with the complexity matching hypothesis.

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