Circular and linear menus: user studies on gaze-based interaction methods

Recent studies show how superior circular gaze-based interaction methods are when compared with linear ones. By establishing a fixed rate for the distance between items or size of items, this experiment shows that the objects' shape does not significantly impact the user experience. Four gaze-based interaction methods are investigated on both a linear and a circular menu. Results show a lack of impact of the menu shape on user's experience feedback, which was later analysed. For novice users, multimodal interaction using a physical button to activate an interface item was favoured.