Related Experiment Video
Updated: Jul 3, 2026

07:48
Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
Published on: April 4, 2025
A flight by periscope and where it landed
Stanley N Roscoe1, Hector M Acosta
1ILLIANA Aviation Sciences, McKinleyville, California, USA.
Human Factors
|August 12, 2008
Summary
Display design factors influence perceived object size and visual accommodation. Understanding these links is crucial for optimizing visual performance in augmented reality systems.
Area of Science:
- Visual perception research
- Human-Computer Interaction
- Optometry
Background:
- Historical context of display technology, including periscopes used as early simulators.
- Early research (1966) highlighted oculomotor and perceptual functions in display design.
Observation:
- Observers adjusted light disks to match perceived "moon" size.
- Optometric measurements of accommodative distance were recorded concurrently.
Findings:
- High correlations were found between focal distances and perceived object sizes.
- Virtual images in head-up and head-mounted displays (HUDs and HMDs) do not always focus at optical infinity.
Implications:
- Display design factors significantly impact visual accommodation and perceived size.
- Findings offer insights into the moon illusion and inform the design of advanced visual displays.
- Operational systems can influence visual performance via accommodation, necessitating careful design considerations.
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