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Related Experiment Video

Updated: Jan 25, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
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Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

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Complexity matching and coordination in individual and dyadic performance.

Daniel S Schloesser1, Christopher T Kello1, Vivien Marmelat2

  • 1Cognitive and Information Sciences, University of California, Merced, United States.

Human Movement Science
|May 13, 2019
PubMed
Summary
This summary is machine-generated.

Complexity matching, a measure of network coordination, was observed between hands within individuals and between partners. This coordination was necessary for dyads but not individuals, and loose coupling facilitated performance.

Keywords:
Bimanual coordinationComplexity matchingFitts’ taskInterpersonal coordinationLong-range correlation

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Area of Science:

  • Cognitive Science
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Complexity matching quantifies information exchange and coordination in complex networks.
  • Previous research primarily focused on interpersonal coordination.
  • The applicability of complexity matching to within-individual interactions remained unexplored.

Purpose of the Study:

  • To investigate complexity matching within individuals and between dyads using a coordinated Fitts' task.
  • To examine the role of response coupling in facilitating complexity matching.
  • To determine the relationship between complexity matching and perceptual-motor performance.

Main Methods:

  • A double, coordinated Fitts' perceptual-motor task was employed in both individual and dyadic conditions.
  • Participants alternated target touches with their left and right hands (individual) or partners did so (dyadic).
  • Response coupling was manipulated by varying target drift (random vs. contingent).

Main Results:

  • Long-range correlations in inter-response intervals demonstrated complexity matching in both individuals and dyads.
  • Response coupling was essential for complexity matching in dyads, with reduced matching when coupling was absent.
  • Experiment 2 confirmed coupling's effect stemmed from inter-limb interactions.
  • A weak negative correlation was found between complexity matching and total response time.

Conclusions:

  • Complexity matching principles and measures are applicable both within and between individuals.
  • Perceptual-motor performance can be enhanced by loose response coupling.
  • The findings extend the understanding of coordination dynamics across different interaction levels.