Haptic Discrimination of Object Size via Tactile Sensation vs. Vibratory Sensory Substitution

Humans rely on a complex interworking of visual, tactile and proprioceptive feedback to accomplish even the most simple of daily tasks. These senses work together to provide information about the size, weight, shape, density, and texture of objects being interacted with. While vision is highly relied upon for many tasks, especially those involving accurate reaches, people can typically accomplish common daily skills without constant visual feedback, instead relying on tactile and proprioceptive cues.