At age 2, jamison had hardly said any words, had never really made eye contact with his parents, and was intensely preoccupied with the buttons and zippers on his clothing. jamison:

The answer is: could probably be diagnosed with autism. Autism is characterized by a delay and difficulty in communicating, impairments in social interaction and non-verbal communication with rigid repetitive behaviors. There are many types of autism and the causes were genetic and environmental influences. It is also known as autism spectrum disorder nowadays.