EYE MOVEMENT-BASED HUMAN-COMPUTER INTERACTION TECHNIQUES

user to computer. The movementof a user’s eyes can provide a convenient, natural, and high-bandwidth sourceof additional user input, to help redress this imbalance. We therefore investigatethe introduction of eye movements as a computer input medium. Ouremphasis is on the study of interaction techniques that incorporate eye movementsinto the user-computer dialogue in a convenient and natural way. Thischapter describes research at NRL on developing such interaction techniquesand the broader issue raised by non-command-based interaction styles. Itdiscusses some of the human factors and technical considerations that arise intrying to use eye movements as an input medium, describes our approach andthe first eye movement-based interaction techniques that we have devised andimplemented in our laboratory, reports our experiences and observations onthem, and considers eye movement-based interaction as an exemplar of a new,more general class of non-command-based user computer interactio