Diagnosis of Autism Spectrum Disorder

NIMH [1] had described autism to be the foremost notable childhood developmental disorder. Ozonoff et al. [2] had stated a Greek word called autos as being self. According to Brasic [3], Landa [4], and National Human Genome Research Institute (NHGRI) [5], ASD had been recognised in early childhood and characterized by qualitative abnormalities in social interactions, such as in communication, and repetitive behaviours, interests, and activities (RRBs). In 1943, Ozonoff et al. [2] had referred Leo Kanner at the John Hopkins University in Baltimore had reported autism as a specific set of behaviors contributing to different spectrums. Ozonoff et al. [2] had also found that he had diagnosed 11 children who had less interest in people, held on to their daily routines, and had shown unusual movements. They faced difficulties in learning and interacting with other people.