Worst of all, once a tantrum started, he couldn't be consoled. People stared, shook their heads and clucked their tongues. Most children categorize, analyze and interpret sights, sounds and smells in their minds until the world begins to make sense. Their brains process information from their body position and sense of balance. While all this is going on, few are even aware that learning is taking place.
Sensory integration occurs naturally as a child develops.
But for some, perhaps ten percent of the population, this process does not go smoothly. A child may have a threshold of pain that is set too high or too low. He can suffer from too little or too much sensory stimulation. The lightest skin contact may be unbearably painful. A dripping faucet can create constant earsplitting explosions.