The purpose of the study reported in this paper was to compare three different types of interfaces providing: haptic information, graphic information, or combined haptic and graphic information in an easy menu selection task. The results suggested that the combined haptic and graphic interface was preferable to the graphic interface regarding accuracy, while both interfaces were fundamentally equal concerning completion time. The results also indicated that the combined haptic and graphic interface was less mentally demanding than either the graphic or the haptic interface. Solely haptic feedback obtained, without exception, worse results than the other cases.
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