Fall 2025 GRASP on Robotics: Parastoo Abtahi, Princeton University, “When Robots Disappear – From Haptic Illusions in VR to Object-Oriented Interactions in AR”

Advances in audiovisual rendering have led to the commercialization of virtual reality (VR); however, haptic technology has not kept up with these advances. While a variety of robotic systems aim to address this gap by simulating the sensation of touch, many hardware limitations make realistic touch interactions in VR challenging. In my research, I explore how, by understanding human perception through the lens of sensorimotor control theory, we can design interactions that not only overcome the current limitations of robotic hardware for VR but also extend our abilities beyond what is possible in the physical world.

In the first part of this talk, I will present my work on redirection illusions that leverage the limits of human perception to improve the perceived performance of encountered-type haptic devices in VR, such as the position accuracy of drones and the resolution of shape displays. In the second part, I will share how we apply these illusory interactions to physical spaces and use augmented reality (AR) to facilitate situated and bidirectional human-robot communication, bridging users’ mental models and robotic representations.