Publications by authors named "Erwan Joel David"

A popular technique to modulate visual input during search is to use gaze-contingent windows. However, these are often rather discomforting, providing the impression of visual impairment. To counteract this, we asked participants in this study to search through illuminated as well as dark three-dimensional scenes using a more naturalistic flashlight with which they could illuminate the rooms.

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Article Synopsis
  • The study investigates how central and peripheral vision function differently during visual tasks in virtual reality, compared to traditional 2D screens.
  • The researchers replicated gaze-contingent experiments to simulate vision loss and explored how head movements affect visual attention in a wide field of view environment.
  • Findings reveal new visuo-motor behaviors in 360° settings, indicating that eye movements are mainly affected by vision loss, while head movements primarily facilitate scene exploration, which can inform gaze prediction models for VR applications.
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Visual search in natural scenes is a complex task relying on peripheral vision to detect potential targets and central vision to verify them. The segregation of the visual fields has been particularly established by on-screen experiments. We conducted a gaze-contingent experiment in virtual reality in order to test how the perceived roles of central and peripheral visions translated to more natural settings.

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Visual field defects are a world-wide concern, and the proportion of the population experiencing vision loss is ever increasing. Macular degeneration and glaucoma are among the four leading causes of permanent vision loss. Identifying and characterizing visual field losses from gaze alone could prove crucial in the future for screening tests, rehabilitation therapies, and monitoring.

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