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Effects of hand movement lag on discrete manual control tasks in virtual environements

    Research output: Contribution to conferenceConference Paperpeer-review

    Abstract

    Most Virtual Reality applications involve manual manipulation and suffer from lags. Effects of lag in a virtual environment have received much attention. However, effects of target distance and width had not been analyzed in separation. A study has been conducted to investigate the effects of, and interactions among, hand movement related lag, target distance, and target width on manual task performance in a virtual environment. With a constant hand-related lag, hand Movement Time obeys Fitts' law (R-2>0.85). Lags of 110 ms or above can significantly increase hand Movement Times and their effects have significant interactions with the effects of target width but not with target distance. This finding indicates that, in the presence of lag, the effects of target distance and width should be analyzed in separation.
    Original languageEnglish
    Pages1210-1213
    Publication statusPublished - 1999
    EventProceedings of the Human Factors and Ergonomics Society -
    Duration: 1 Jan 19991 Jan 1999

    Conference

    ConferenceProceedings of the Human Factors and Ergonomics Society
    Period1/01/991/01/99

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