Evaluation of Short-term Memory with Eye-tracking Camera and Serial Position Effect

Abstract

Recently, the number of dementia patient have increased according to the long life of elderly people. Early detection of Alzheimer's dementia becomes important to respond to such changes in the times. In general, it is well-known that the patient of Alzheimer’s dementia tends to loss their memory. However it was difficult to make a quantitative evaluation of the memory ability up to now. Therefore, we combine eye tracking with computer graphics and a method for visual serial position effect. This serial position effects is useful method to measure the capacity of short-term memory in the psychological physical field. Our proposed method can select arbitrary position in serial position by using the result of eye tracking. In this paper, we evaluated the reaction time and tendency of short-term memory as the basic study of visual serial position effect. As a preliminary result, the difference of short-time memory ability was indicated between 20’s and 50’s.