UNLABELLED We evaluated the effects of a response-effort intervention on the occurrence of self-injurious hand mouthing and a competing response (object manipulation) with 4 individuals who had profound developmental disabilities. During Phase 1, results of functional analyses showed that all participants engaged in high levels of hand mouthing in the absence of social contingencies, suggesting...

Robotic systems have yet to match humans in skill for movement planning and tool manipulation. For example, humans can robustly grasp and manipulate objects even under task variation. However, successful grasping methods for robotic manipulators are often limited to structured environmental conditions. Our dual goals are to understand manipulation actions in humans and to add such skills to a r...

What does it mean to "know" what an object is? Viewing objects from different categories (e.g., tools vs. animals) engages distinct brain regions, but it is unclear whether these differences reflect object categories themselves or the tendency to interact differently with objects from different categories (grasping tools, not animals). Here we test how the brain constructs representations of ob...

Manipulation of deformable objects will be discussed. Manipulation of deformable objects is de ned as controlling deformation of objects as well as their positions and orientations. The manipulation is a fundamental and important task in many industrial elds. In fact, there exist many operations of deformable objects such as textile fabrics, rubber parts, paper sheets, strings, and foods. In or...

Impulsive forces are more efficient than dynamic and static forces, and are used to achieve everyday tasks that would be difficult or impossible using the latter two types of forces. Yet, impact is rarely used in robotic manipulation due to difficulties in modeling, planning, and control. This paper studies the problem of batting a free flying object to a target location, with a focus on comput...

This paper investigates local observability of the pose and motion of a curved threedimensional object rolling on a rough horizontal plane. The plane models a controllable robotic palm imbued with tactile sensors. The palm can accelerate in arbitrary translational directions and the tactile sensors can determine the contact location between the palm and the rolling object at every instant in ti...

We present a Dynamic Spatially Augmented Reality system for augmenting movable 3D objects in an indoor environment using multiple projectors. We describe a real-time system for applying virtual paint and textures to real objects simply by direct physical manipulation of the object and a “paint brush” stylus. We track the objects and the “paintbrush”, and illuminate the objects with images that ...

An effective autonomous robot performing dangerous or menial tasks will need to act under significant time and energy constraints. At task time, the amount of effort a robot spends planning its motion directly detracts from its total performance. Manipulation tasks, however, present challenges to efficient motion planning. Tightly coupled steps (e.g. choices of object grasps or placements) allo...

Dexterous manipulation requires both strength, the ability to produce fingertip forces of a specific magnitude, and dexterity, the ability to dynamically regulate the magnitude and direction of fingertip force vectors and finger motions. Although cortical activity in fronto-parietal networks has been established for stable grip and pinch forces, the cortical regulation in the dexterous control ...