Modeling reduced user experience caused by visual latency

Kyle Brady, Bing Wu, Sung Hun Sim, Andinet Enquobahrie, Ricardo Ortiz, Sreekanth Arikatla

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Scopus citations


    Two experiments were conducted to investigate the influence of delayed visual feedback on users’ motor performance and subject experience. In a Fitt’s-law target acquisition task, participants moved a cursor from a home location to a spherical target with delayed visual feedback. The experimental trials were blocked by latency (Experiment 1) to allow participants to get adapted to a constant delay or tested in random order (Experiment 2). Both experiments found significant impact of delay on motor performance, and the larger the Index of Difficulty of movement, the greater the performance detriment. A modified Fitts’-law model described the results very well with an additional multiplicative component of latency. Participants’ ratings of subjective experience with different latencies could be well-predicted from their motor performance. Between-experiments comparisons further revealed the effects of sensorimotor adaptation to constant delays. The results provide guidance to the design of VR/AR/tele-operative applications.

    Original languageEnglish (US)
    Title of host publicationAdvances in Ergonomics Modeling, Usability
    EditorsMarcelo Soares, Tareq Z. Ahram, Christianne Falcao
    PublisherSpringer Verlag
    Number of pages11
    ISBN (Print)9783319416847
    StatePublished - 2017
    EventInternational Conference on Ergonomics Modeling, Usability and Special Populations, AHFE 2016 - Walt Disney World, United States
    Duration: Jul 27 2016Jul 31 2016

    Publication series

    NameAdvances in Intelligent Systems and Computing
    ISSN (Print)2194-5357


    OtherInternational Conference on Ergonomics Modeling, Usability and Special Populations, AHFE 2016
    Country/TerritoryUnited States
    CityWalt Disney World


    • Feedback delay
    • Fitts’ law
    • Human performance modeling
    • Latency
    • Pointing

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Computer Science(all)


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