Many times signs and symptoms of autism may be seen prior to 3 years of age, but a diagnosis is not made.  It may not be autism, but what is it?  Studying children at risk for developing ASD but then don’t go on to receive a diagnosis gives researchers a clue.  Dr. Meghan Miller from the University of California at Davis discusses a study that follows up these kids to 9 years of age and finds out what is going on with them.  Do they have autism after all?  Or do they have absolutely no symptoms at all?  Or is there something in between?