Kodai Ito

Evaluation of Feelings of Excitement Caused by Auditory Stimulus in Driving Simulator Using Biosignals

In recent years, Japanese young people are exhibiting less interest in driving. Since we believe that their interest can be increased by in-vehicle systems, in this study, we prepared a driving course that features exciting scenes and measured the biological signals of participants while they drove a driving simulator. We focused on the excitement of driving scenes in experiments using a DS and evaluated the feelings of excitement by EEGs and ECGs. We concluded that SDNN and RRV indexes identify feelings of excitement. In this report, we describe a new experiment and analyze its results, which show the same tendency about feeling excitement between questionnaires and biosignals such as EEGs and ECGs.

Evaluation of "dokidoki feelings” for a VR system using ECGs with comparison between genders

In our previous research, we evaluated a “feeling of excitement” using biosignals and proposed the standard deviation of the intervals between the R-waves (SDNN) and R-R interval variability (RRV) from electrocardiograms (ECGs) as physiological indices. In this research, we focused on a “dokidoki feeling, ” which is the main component of a ‘feeling of excitement, ” and experimentally evaluated a VR game called “Summer lesson” using ECGs. In addition, we measured each participants personal space before the experiencing the VR game and clarified the relationship among “dokidoki feeling,” personal space, and gender using physiological indices.

Development of a tracking sound game system for exercise support of the visually impaired using Kinect

Even though many visually impaired people have a desire to exercise, they often cannot because they don’t have enough time or facilities. Based on this background, we developed an exercise support system that the visually impaired can use by themselves at home. However, previous systems require a dedicated stationary bicycle that we can’t obtain anymore. Therefore, we developed a new system using Kinect v2, which renders dedicated stationary bicycles obsolete, and any stationary bicycle can be used. We experimentally evaluated our system and described our conclusions.

Evaluation of kawaii feelings caused by looking at stuffed animals using ECG

The Japanese word kawaii, which represents an element of Japanese culture, is used all over the world to express emotional values. We have been conducting research on its measurement and classification by biological signals. We previously identified exciting and relaxing kawaii images. However, no experiments have targeted actual objects. Therefore, we performed a new experiment using stuffed animals and obtained new knowledge on kawaii that produces relaxing experiences.

Evaluation of “Feelings of Excitement” Caused by a VR Interactive System with Unknown Experience Using ECG

In recent years, virtual reality (VR) technology has made remarkable progress, including the development of many devices and contents for such systems. VR contents that offer unknown experiences are especially entertaining when they incorporate actual feelings, for example, heat and cold. In this report, we describe the development of an interactive system through which players experience fire and ice from their hands using a Peltier device in VR space from a head-mounted display. ECG levels suggest that this new experience is exciting for players who felt excited during the unknown experience of our contents. SDNNs and RRVs of ECGs might be appropriate indexes of feelings of excitement for unknown experiences using VR.