dr raynard kington , of the us nationals institute of health , directly conducted the experiment , said : " these findings establish that environmental differences play a strong place in autism spectrum disorder ( adhd ) . " extensive analysis of the genes and how they affect brain activity is necessary to yield better strategies for diagnosing and treating children with autism . " humans with asd , which involves autism and ptsd ' s syndrome , have difficulties with social interaction , failure communicate skills and likely to engage in repetitive tendencies .
The ASD includes diseases such as autism and Asperger's syndrome.