Humans perform various motor actions in their daily lives. The control of such motor actions is based on multisensory processes including vision and proprioception. These processes produce cognitive functions such as self-awareness. In our laboratory, we are trying to elucidate the cognitive functions involved in human behavior through psychophysical methods. We have revealed that bodily awareness has a significant influence on visual perception, suggesting the importance of considering embodied cognition in perceptual processing. At present, we are investigating the effects of bodily awareness on motor control and the cognitive mechanisms of the body in mind that people subjectively feel by using human behavioral characteristics obtained from psychophysical experiments. I promote the research and teaching of understanding human behavior, human body, and human perception by means of psychophysics.