人-機械系における予測可能性と観測精度が操作主体感に与える影響

抄録

Sense of agency is the sense that I am the one who is causing or generating an action, and, through them, controlling events in the outside world. We previously proposed a mathematical model that predicts sense of agency in order to design the machine that gives users appropriate sense of agency. The objective of this research is to apply the mathematical model to a driving task. In the task, participants operate a handle to move the cursor on a display. The cursor represents the point of forward gaze in the operation of automobile. We applied the mathematical model to the task of operating the handle-cursor system to correct the trajectory of cursor in response to external force. The mathematical model predicts that prediction error for magnitude of the external force and observation precision of the cursor interactively affect sense of agency. The interaction between prediction error and observation precision was observed by two-way ANOVA with external force and cursor noise as factors in the experiment. It was shown that the mathematical model can be applied to systems with complex transformations between their own operations and sensory feedback.