Why does a child with Aspergers have a short attention span?

Kids with Aspergers frequently exhibit problems associated with other special needs (e.g., attention problems and obsessive/compulsive disorders). Researchers and practitioners are unsure whether these behaviors are a part of Aspergers or are comorbid, (i.e., related) disorders.

The characteristics of Aspergers include difficulties in social communication, sensory problems and organizational difficulties. All of these combined will certainly affect their ability to sustain concentration for any length of time.

For example, a room may be too bright, noisy, too many pictures, etc., which are all distractions and high stimulation. This means that certain sights, noises, tastes and textures can bother a child more than they would a child without Aspergers.

Aspergers kids will often not fully understand what is being said to them and will often misinterpret crucial verbal and non-verbal information. They also find it difficult to give consistent eye contact as this sometimes interferes with their ability to take in new information.

The Parenting Aspergers Resource Guide: A Complete
Resource Guide For Parents Who Have Children Diagnosed
With Aspergers Syndrome.