Well, it's nice to be au courant. Today's Science Times has an article about the battle raging around sensory integration problems in children - do they qualify as a disorder? And, given the fact that some children most definitely experience symptoms, how can they be treated?
Occupational therapies for hypersensitivity combine gradual exposure to the offending stimuli, and conditioning techniques that calm over-arousal while in the presence of the stimuli so that the child becomes more and more used to it . Hyposensitivity (under sensitivity) does the opposite.
I always distrust campaigns for new disorders to be named, it can bias the work behavioral scientists are doing. But that seems to be the fashion nowadays. Having dealt in the lab with children who have ADHD and autism for only short periods of time, I can't blame the parents whose kids have real problems, who deal with them day in and day out, and who desparately want solutions for them.