Children with sensory integration dysfunction have difficulty processing information from the senses (touch, movement, smell, taste, vision, and hearing) and responding normally to that information. These children typically have one or more senses that either over- or underreact to stimulation. Sensory integration dysfunction can cause problems with a child’s development and behavior.

Children with autism and other developmental disabilities often have sensory integration dysfunction. However, sensory integration dysfunction can also be associated with premature birth, brain injury, learning disorders, and other conditions.

The exact cause of sensory integration dysfunction is not known. It is commonly seen in people with autism, Asperger’s syndrome, and other developmental disabilities. Most research suggests that people with autism have irregular brain function. More study is needed to determine the cause of these irregularities, but current research indicates they can be inherited.

Source: Web MD