This study aims to clarify the effects of colour of light on the visual texture of wood materials and the impression of a room. We examine the relationship between the visual texture and the impression of the room. Before the experiment, we made a scale model of a living room and conducted a subjective experiment. 36 kinds of lighting conditions using a LED lighting source was equipped on the top of the scale space. Participants observed the space and rated the naturalness of the colour appearance, the visual texture of the wood materials and the preference of the lighting. They also evaluated the impression of the room. According to the results, the lighting in 3300K, 4000K and duv = -0.005 - +0.005 is more natural and preferred for wood materials. In addition, the preferred wood materials lead to the familiarity of a room.

This study examined the “factors that create a mindset for continuous learning of a working member of society” with the aim of promoting the development of recurrent education. The study was conducted on 21 participants of the “Shinshu 100-Year Business Program” and other programs based on the same concept that are being implemented in neighboring prefectures. By conducting interviews with people who have participated in the program, we obtained some factor candidates of the mindset to continue learning. And then, we conducted questionnaires to gauge empathy for the factors. The results derived factors that make the mindset to continue learning of member of society is “Experience of change through learning,” “Practice the ideal way of life,” “Fulfillment of a desire to grow and contribute to society,” and “Relationships with the environment and others.”

Guided by the concept of the ‘extended body,’ which suggests that body perception extends beyond physical boundaries, this study examined whether the sense of body ownership could extend to a computer-generated (CG) ‘phantom hand’ holding a colored ball. We investigated how this extension influenced subjective weight comparisons between two balls. Results revealed a clear ‘phantom hand effect,’ where participants consistently perceived the ball held by the phantom hand as heavier. This suggests extended body mechanisms similar to the rubber hand illusion, though likely operating unconsciously, as participants did not explicitly associate the phantom hand with their own body. Additionally, consistent with previous studies, ball color influenced weight perception, with lighter colors perceived as less heavy. Chroma appeared to have a positive effect when other variables were controlled, while hue angle showed no systematic influence. These findings highlight the unconscious nature of body extension and its sensory effects.

Activated interaction plays important role in deepening relationship on remote communication. We have developed a communication system that changes the background color from the black to the warm color based on the estimation model. This system supports sharing an activated interaction in spatially separated communication for friends. However, in the first meeting, when the background color suddenly changes from the warm color to the black, it brings a negative impression of the silence in the conversation. In this study, we developed an expression method of afterglow that enhances of impressions in first meeting. This method generates slowly changing the background color when the conversation is finished. Furthermore, a communication experiment was conducted to evaluate the developed method in comparison with the previous real-time expression method. Experimental results indicated that the developed method is effective for the first meeting, although the selected method differs depending on the talker’s preference.