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Complexity of human response delay in intermittent control: The case of virtual stick balancing

Takashi Suzuki,I. Lubashevsky,Arkady Zgonnikov

Published 2018 in arXiv: Neurons and Cognition

ABSTRACT

Response delay is an inherent and essential part of human actions. In the context of human balance control, the response delay is traditionally modeled using the formalism of delay-differential equations, which adopts the approximation of fixed delay. However, experimental studies revealing substantial variability, adaptive anticipation, and non-stationary dynamics of response delay provide evidence against this approximation. In this paper, we call for development of principally new mathematical formalism describing human response delay. To support this, we present the experimental data from a simple virtual stick balancing task. Our results demonstrate that human response delay is a widely distributed random variable with complex properties, which can exhibit oscillatory and adaptive dynamics characterized by long-range correlations. Given this, we argue that the fixed-delay approximation ignores essential properties of human response, and conclude with possible directions for future developments of new mathematical notions describing human control.

PUBLICATION RECORD

  • Publication year

    2018

  • Venue

    arXiv: Neurons and Cognition

  • Publication date

    2018-08-15

  • Fields of study

    Biology, Mathematics, Computer Science, Engineering

  • Identifiers
    arXiv 1808.05002
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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