The Laboratory for Perceptual Robotics (LPR), directed by Rod Grupen, studies computational systems that solve sensory and motor problems. Experimental platforms include sensor networks, mobile manipulators, and integrated bimanual humanoids. Current projects focus on knowledge representations grounded in closed-loop interaction, learning to exploit whole-body dynamics for stabilization, risk-sensitive policy optimization, human-robot interaction and communication, and computational models for learning and development.