The effect of interior design elements and lighting layouts on prospective occupants' perceptions of amenity and efficiency in living rooms

This study examines the effect of interior design elements on prospective occupants' perceptions of amenity and efficiency in a residential space. Thirty-one prospective occupants participated in a survey using virtual reality environments that consist of various combinations of interior design elements. In this study, occupants' perceptions were discussed in terms of affordance and satisfaction, and the relationship between them is interpreted statistically. The spatial factors affecting overall satisfaction at a detailed level were discussed. The causal relationship between the interior design elements and space were determined under the elaboration of perception processing. Multiple linear relationships between a limited number of spatial factors and virtually created space were analyzed. The perceived affordance of interior design elements was influenced by priming and concrete behaviors in a space. The materials, surfaces, and colors were weak contributors to clear perceptions about space. The occupants' evaluative perception processing elaborations were not effectively activated in the assessment of spatial design adequacy (SDA) in terms of materials, surfaces, and colors in a space.