Abstract
The effect of the visual correction with glasses on the brain activation by reading sentences with characters presented in a stimulus image were measured by the fMRI. In order to move the lens unit inside the fMRI equipment, we choose the suitable materials for the lens holder and jigs. As the results, when stimulus images can be seen clearly, the brain activations are found in the classical language areas. On the other hand, when the visual correction was clear but the target images were blurred, or when the target images were clear but the correction was not sufficient, little activation was found in those areas, although lower visual areas and the frontal eye field / premotor area were activated. The activations in the classical language areas would be much sensitive to whether the character images are readable or not.
