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Environmental surfaces and the compression of perceived visual space
Zheng Bian1, George J Andersen
1Department of Psychology, University of California, Riverside, Riverside, CA 92521, USA.
Journal of Vision
|June 15, 2011
Summary
Perceived visual space compression differs between ground and ceiling surfaces. Distance judgments show less compression when viewing ground surfaces, indicating surface type impacts spatial perception.
Area of Science:
- Psychology
- Visual Perception
- Spatial Cognition
Background:
- The perception of visual space is crucial for navigation and interaction.
- Environmental surfaces significantly influence how we perceive depth and distance.
- Previous research indicates potential biases in exocentric distance judgments.
Purpose of the Study:
- To investigate if the compression of perceived visual space differs based on the type of environmental surface viewed.
- To compare exocentric distance judgments for ground versus ceiling surfaces in simulated 3D scenes.
Main Methods:
- Four experiments were conducted using simulated 3D scenes.
- Participants performed exocentric distance judgments on ground and ceiling surfaces.
- Tasks included an L-shaped matching task and a bisection task.
Main Results:
- Considerable compression of perceived exocentric distance was observed for both ground and ceiling surfaces.
- Perceived exocentric distance was significantly less compressed on ground surfaces compared to ceiling surfaces.
- This ground surface advantage remained consistent across different distances within the scene.
Conclusions:
- The type of environmental surface influences the compression of perceived visual space.
- Perceptual spatial layout is modulated by whether a ground or ceiling surface is viewed.
- Ground surfaces lead to less compressed spatial perception than ceiling surfaces.
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