Abstract
The size of a space is an important element for comfort in small, enclosed areas, such as the insides of a car. When potential size is limited, a space may be made to seem larger through visual factors such as lighting and coloring, both of which affect human perception. In this paper, we focused on an optical illusion - the "Pincushion Distortion Figure" - as a possible factor in spatial design. We also examined the parameter involved in causing the optical illusion from a visual information processing standpoint, with particular focus on the visual field. Results of several experiments revealed that the peripheral visual field may keep this optical illusion effect; indeed, with regards to the Pincushion Distortion Figure, horizontal lines were more influential than vertical lines. We also found that the dense center of the figure causes oppression, and concluded that in order to have sufficient depth with minimum oppression, the center of the figure should not contain lines.
