I don't know what the stats are on this, or even if there are any, but the use of social stories, works. It gives these very visual thinkers a visual way to learn new behaviors. It has worked well for us. Also, "brushing" seems to work well for calming and for sensory overload. Heavy lifitng, physical work seems to really modify behavior. At school my boys have a program through the AI class that is called "How is my engine running?" IT is a little card that they have with a velcro car that they can move from place to place. IT has the words FAST JUST RIGHT SLOW on it. During the day they have scheduled times to pull out this card and move their car to the approiate spot. Then, on the back of the card, they have ideas to "correct" the high or low. They take each child and learn what helps for them, then use only what works as a remedy. Like for example, one of Kyle's remedies for "low" is to eat a crunchy food, like a pretzel. Where as Devin's is to sing. High for Kyle is to run Devin's is brushing. This technique obviously takes a lot of knowledge of the indivigual child, but it really does help to teach a child to self regulate, and become more aware of their own feelings, and behaviors.