Exploring the structure of perceptual space through rated feelings of spaciousness

[Speaker] Inagami, Makoto:1
1:Nagoya University (Japan)

Perceptual space has been said to have a non-homogeneous structure, in contrast to Euclidean space. This study investigated the structure of perceptual space by analyzing the feeling of spaciousness that is generated by environments encountered in daily life. An experiment was conducted using 42 outdoor places on our university campus, which varied in terms of spatial configuration. At each place, 30 participants observed the surrounding environment and rated it with respect to felt spaciousness. In addition, a 3D laser scanner was used to measure the spatial configuration of each environment. We then analyzed the relationship between calculated spatial volume and rated spaciousness to create a model of the structure of perceptual space. The model indicates that perceptual space is compressed with distance from the observation point and that the degree of compression varies with egocentric direction. This distorted structure probably reflects people's locomotion pattern in their daily lives.
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