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Proceedings Paper

Effects of system lag on head-tracked cursor control
Author(s): Steven P. Rogers; V. Alan Spiker; Susan C. Fischer
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Paper Abstract

An experiment was conducted to assess the effects of system lag on head tracking performance when positioning a cursor on a stable target. Seven values of lag were tested: 0, 20, 40, 60, 80, 100, and 120 msec. To assess potential interactions, the effects of lag were examined in combination with movement distance and direction. The task was to move a head-tracked cursor to a target that appeared on a six-inch CRT screen in an analog of time and that lag was linearly related to acquisition time, accounting for an increase in target acquisition time of approximately 7 millisecond of lag. Furthermore, the effects of lag on performance were evident with lags as brief as 20 msec.

Paper Details

Date Published: 18 June 1997
PDF: 10 pages
Proc. SPIE 3058, Head-Mounted Displays II, (18 June 1997); doi: 10.1117/12.276644
Show Author Affiliations
Steven P. Rogers, Anacapa Sciences, Inc. (United States)
V. Alan Spiker, Anacapa Sciences, Inc. (United States)
Susan C. Fischer, Anacapa Sciences, Inc. (United States)

Published in SPIE Proceedings Vol. 3058:
Head-Mounted Displays II
Ronald J. Lewandowski; Loran A. Haworth; Henry J. Girolamo, Editor(s)

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