They cannot distinguish between a light touch or intense pressure. They develop defensive personality styles designed to keep people away from them. Of course, this is socially unacceptable and can result in social isolation or rejection. Dr. Larry Silver of Georgetown University finds that SI kids have difficulty orienting themselves in space and easily lose their balance. Ineffective motor planning skills can impact upon the child's ability to button, tie, use scissors, etc.
Clumsiness is common due to poor coordination.
Some new research indicates that SI may even impact upon the senses of taste and smell. For additional information on this disorder, you may want to explore the work of A. Jean Ayres. Dr. Ayres is credited with the pioneer work done in this area decades ago. The SID diagnosis is a controversial one and some professionals doubt the validity of the syndrome . . . Many of these kids benefit greatly from the intervention of an Occupational Therapist who understands this unusual disorder.