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Evaluation of Sense of Self-agency and Self-ownership During Mouse Operation Using Gaze and EEG

In interface design, it is important for users to understand how to operate a system. In the cognitive science field, the senses of self-agency and self-ownership are well-studied. These senses occur not only in our bodies, but also in extensions of our bodies, like when driving a car or operating a character in a game. The purpose of this study was to evaluate these senses by measuring gaze and electroencephalography (EEG). If we can obtain new indicators for these senses, interface designers will be able to effectively utilize this information when creating better interfaces. In this study, we focused on operating a mouse cursor as the most popular interface and assessed if these senses could be detected using bio-information by changing the direction of movement of the cursor with respect to the task of dumping dust. When both sensations occurred, the distance between the line gaze and the mouse cursor increased, and the EEG rhythm of the occipital lobe changed.