室内不均一照明下でとられる会話行動の属性別特徴 : カフェを想定した室内での会話者の行動と意識に関する検討

This study aims to clarify what impact lighting environment has on the behavior of conversation conducted in an interior space. Experiments were carried out to observe natural behavior of conversation in a laboratory assumed as a cafe. From the experiments, following principle results were summarized. 1. People tended to converse with frequent eye contact with their head bent forward in a condition with low illuminance. Woman-woman and man-woman pairs were more inclined to have frequent eye contact than a man-man pair. 2. With a lighting method that uses a bright table top and darker surrounding, the brighter the illumination, the lower the sound volume of conversation became. In contrast to this, with a lighting method that uses a brighter surrounding, the brighter the illumination, the louder the volume became. 3. Man-man pair was more inclined to keep a longer personal distance while conversing compared to woman-woman and man-woman pairs. There was also a tendency to keep a longer personal distance in an environment with a lighting method that uses bright surrounding than one that uses a bright table top.