For some children Sensory Integration does not occur as it should. Dysfunction in SI happens when the brain cannot sort out, filter, analyse, organise and connect (or integrate) sensory messages. Dysfunction does not mean the brain is damaged but that information from the senses is not flowing and integrating efficiently.

This dysfunction results in the child being unable to respond to sensory information in order to behave in a meaningful, consistent way. He may also have difficulty planning and organising what he has to do therefore as a result may find learning difficult. A child with dysfunction in SI does not feel secure or safe nor does he experience the fun that other children do. Sensory Processing Disorder can influence self regulation, movement, learning and interaction with others.(Allen and Smith 2011)

SI Dysfunction is a condition that is often associated with other developmental disorders such as :

• Autistic Spectrum Disorder
• Attention Deficit Hyperactivity Disorder
• Specific Learning Difficulties
• Developmental Disabilities
• Developmental Co-ordination Disorder (Dyspraxia)