Abstract
To determine the suitable mapping after cochlear implantation for young children, we have studied six patients who have been operated on in the Kyoto University Hospital. Five of the patients had congenital deafness and one perilingually deafness. Four children with congenital deafness covered their eyes with their hands or closed their eyes at C level measurment of the first mapping session. It was considered that they confused the sound stimulation with the visual stimulation. As these four children refused the second mapping session the stimuli for C level measurment was excessive. At the first mapping session these four congenital deaf children took their parents hands or touched their cheek by their own hands just before they covered their eyes, and we thought that it has to be set as the C level. When the children use the speech processor for the first time after mapping, we set sensitivity level lower than the most suitable level. As they showed clearer responces to the sound, we could easily tune up the map.
