Children and teens with Asperger’s Disorder are unable to recognize that someone is experiencing an emotion. When people display their feelings, people with Asperger’s Disorder literally do not notice it. The primary reason seems to be that they lack an understanding that all people have feelings.
While we do not consciously think about it, most of us operate in the social world with the understanding that all humans are emotional beings and that we need to be careful about what we say and do in order to try to avoid hurting others. If you had Asperger’s Disorder, you would not have this understanding and would give the same weight to other people’s feelings as you would to the feelings of furniture.
Another contributor to this symptom is the finding that children with Asperger’s Disorder do not look into the eyes of people they are listening to. Most people make mutual eye contact during a conversation. Asperger’s Disorder children and teens, however, look at other parts of the face or the body or even objects in the environment. They miss out on the easy clues that eye contact can provide about what another person is feeling.