From the top of a sensitive scalp to the tip of a ticklish toe, your child's skin is filled with neurons eager to bring news of the outside world to her brain. The tactile sense, or sense of touch, relays news about temperature, texture, shape, size, number, pressure, and much more. When operating efficiently, the tactile sense helps your child do everything from buttoning a shirt to enjoying a hug. When tactile sensations aren't processed well or integrated with other sensory information, though, they can cause profound discomfort.