Sensory integration disorder and autism

I am looking for more information from the web. Thanks.

Thanks for your advice.

Thanks. We will do that.

There are several common components of autism which an OT might help with, including sensory issues, dyspraxia (problems of body control), and executive functioning (ability to begin tasks, follow instructions etc.) Many of these are common to other conditions too, such as ADHD and some learning disabilities. To the OT, what should matter much more than the specific diagnosis is identifying the practical problems that your grandson struggles with the most, and supporting him with those. Your grandson's parents should not be afraid to ask for feedback from the OT about what techniques they are using and why; in fact, the OT should encourage this so that exercises can be backed-up by positive reinforcement at home.

If I were you I'd look online for more information on SPD (before SIT) and autism and for the purpose of OT.

I'm not an expert, but OT helps with both. And almost all people diagnosed with autism have an issue with one of the sensory processes. 

There is a large overlap. But if you've got questions, why not ask the expert who suggested OT?