EYE FIXATION BEHAVIOR IN DEMENTIAL ELDERLY PERSON AND MENTALLY RETARDED PERSON WHILE WALKING FOR WAYFINDING

Abstract

This is an experimental study with eye-camera to investigate eye fixation behavior in 7 demential elderly, 4 mentally retarded and 7 normal persons, while their walking on setting routes for wayfinding cues as a moving arrow sign, a static arrow sign and room number signs. As a result, we find that eye fixations in demential elderly group tend to be biased to floor portions. Three groups show more eye fixations on the moving arrow sign than the static arrow sign. We infer that the moving sign raise visual perception level as a wayfinding cue for demential elderly and mentally retarded groups.