Development of a System to Measure Visual Functions of the Brain for Assessment of Entertainment

The unique event related brain potential (ERP) called the eye fixation related potential (EFRP) is obtained with averaging EEGs at terminations of saccadic eye movements. Firstly, authors reviewed some studies on EFRP in games and in ergonomics and, secondly introduced a new system for assessment of visual entertainments by using EFRP. The distinctive feature of the system is that we can measure the ERP under the conditions where a subject moves eyes. This system can analyze EEG data from many sites on the head and can display in real time the topographical maps related to the brain activities. EFRP is classified into several components at latent periods. We developed a new system to display topographical maps at three latent regions in order to analyze in more detail psychological and neural activities in the brain. This system will be useful for assessment of the visual entertainment.