Robot-human interaction to encourage voluntary action

This paper discusses robot partner interaction based on Frankl´s psychology to encourage a person act voluntarily. Recently, elderly people who live alone in a room is increased. But, it is hoped that the elderly people keep good health. To keep good health for elderly people, a person should act voluntarily and get involved in community events. In Frankl´s psychology insists that the meaning of life is required from external stimuli. Frankl´s psychology is defined 3 fields of value which are provided from external stimuli. A person can be found the meaning of life according to the values getting. Therefore, it is expected that a person would act voluntarily if a person find the meaning and value of life from external stimuli through interacting with a robot partner. In this research, we propose the robot interaction method based on Frankl´s psychology. And we propose an external value estimation method based on the fields of value which estimates an external value from environmental change. Through human-robot interaction experiment based on Frankl´s psychology, we verify that a human acts voluntarily by finding the external value.