Head Tracking Latency in Virtual Environments Revisited: Do Users with Multiple Sclerosis Notice Latency Less?

Latency (i.e., time delay) in a virtual environment is known to disrupt user performance, presence and induce simulator sickness. Thus, with emerging use of virtual rehabilitation, the target populations' latency perception thresholds need to be considered to fully understand and possibly contr...

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Bibliographic Details
Published in:IEEE transactions on visualization and computer graphics 2016-05, Vol.22 (5), p.1630-1636
Main Authors: Samaraweera, Gayani, Rongkai Guo, Quarles, John
Format: Article
Language:English
Subjects:
Adult
Atmospheric measurements
Computer Graphics
Computer simulation
Discrimination
Head Movements - physiology
Humans
Latency
Middle Aged
Multiple Sclerosis
Multiple Sclerosis - rehabilitation
Particle measurements
Perception
Populations
Rehabilitation
Sociology
Statistics
Three-dimensional displays
Thresholds
Time delay
Time lag
Tracking
Training
User Studies
User-Computer Interface
Virtual environments
Virtual Reality
Visualization
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Description
Summary:Latency (i.e., time delay) in a virtual environment is known to disrupt user performance, presence and induce simulator sickness. Thus, with emerging use of virtual rehabilitation, the target populations' latency perception thresholds need to be considered to fully understand and possibly control the implications of latency in a Virtual Rehabilitation environment. We present a study that quantifies the latency discrimination thresholds of a yet untested population - a specific subset of mobility impaired participants where participants suffer from Multiple Sclerosis - and compare the results to a control group of healthy participants. The study was modeled after previous latency discrimination research and shows significant differences in latency perception between the two populations with MS participants showing lower sensitivity to latency than healthy participants.
ISSN:1077-2626
1941-0506
DOI:10.1109/TVCG.2015.2443783