These are conditions in which the child has problems processing and organizing sensation coming from the body and the environment, including sight, sound, touch, smell, taste, body position, and vestibular system (inner-ear, balance).

This lack of ability to process sensory input leads to dyspraxia (difficulty coordinating movement, language, and speech), and postural disorder (poor balance, clumsiness, and stumbling).

Symptoms include balance problems, unable to coordinate both sides of the body, poor hand-eye coordination, inability to organize, bothered by loud noises, lack of fine motor skills, irritated by scratchy clothes.

This condition sometimes occurs along with dyslexia, dyscalculia or ADHD.