Sensory processing disorder (SPD) is a condition in which the sensory signals from the nervous system are either undetected or improperly organized by the brain. Individuals with SPD find it difficult to process information received through the five senses – touch, sight, hearing, taste and smell – which can cause an under or overreaction to sensory stimuli.
Signs include difficulty eating, trouble falling asleep, delayed or over response to pain, difficulty crawling or walking and being startled easily. While SPD is usually diagnosed in childhood, it is often misdiagnosed or left undiagnosed until adulthood. Although the exact cause of SPD is currently unknown, but treatments including occupational therapy can target the symptoms.
Organizations exist to help those dealing with Sensory Processing Disorder in their lives.