Abstract
Stuttering is a developmental disorder of speech fluency. It is known that stuttering speakers can fluently speak when they speak by themselves, but stuttering appears well when they speak under face-to-face condition. This phenomenon is well known but the mechanism is still unclear. In general, vocal communication in the face-to-face condition is under stress in some degree. This stress may have influence on speech motor control. In this study, we attempted to construct the experimental setup for face-to-face communication in MRI condition. There were four conditions; 1) question by another participant in console room, 2) question presented on the screen, 3) look a face of another participant, and 4) a rest condition. Preliminary results showed that there were difference of neural activity between conditions in the fusiform gyrus, motor or sensory areas.
