People with Aspergers have a different perception of the environment around them. They ultimately see the same thing as other people, but its like they see a different view of that thing.

Unlike other forms of Autism, Aspergers have fairly normal cognitive abilities, but where they differ to other people is their understanding of the world around them. The brain processes their environment differently to other people, which is why people with Aspergers often excel with specific skills in which they show exceptional ability, but then struggle to relate to other people who don't have the condition.