ABSTRACT

Dynamic touch is involved whenever an object is grasped and forces are imposed in order to move, stabilize, or carry it. Given its role in manipulating commonplace tools and utensils such as forks and hammers and coffee cups, dynamic touch can be considered critical to everyday function. A good deal of research suggests that time-invariant moments of the mass distribution of handheld objects, extracted by the nervous system during movement, constrain perception of object properties by dynamic touch. The sensory disorder of peripheral neuropathy poses an interesting challenge for muscle-based perception. Older adults and individuals with partial neuropathies continue to engage in behaviors that require them to manipulate objects.