Researchers led by Patricia DeLucia at Rice University compared adults with age-related macular degeneration (AMD) and adults with normal vision. They used a virtual reality system that paired visual scenes and realistic car sounds. The setup was based on work by Daniel Oberfeld at Johannes Gutenberg University Mainz. Participants saw or heard an approaching vehicle, or both, and then pressed a button to say when the vehicle would reach their location.
Results showed that people with AMD judged arrival times much like people with normal vision. Both groups used visual information and hearing together and did not rely only on sound. Louder and larger vehicles were judged to arrive sooner, and adding both cues did not improve accuracy. The team warned the simple VR scene may not match complex traffic.
Difficult words
- researcher — person who studies things to learn moreResearchers
- virtual reality — computer-created environment that feels like real life
- pair — to connect two things together for usepaired
- approach — to move closer to a place or personapproaching
- judge — to decide or estimate something like timejudged
- accuracy — how correct or exact a result or measurement is
- complex — not simple; having many parts or details
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you think a simple virtual reality scene can match real traffic? Why or why not?
- When you cross a street, do you use both sight and hearing? Give one example.
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