Autism, Asperger’s syndrome and pervasive developmental disorder (PDD) are several common and well-known types included in ASD (APA, n.d.; APS, 2017). Though ASD affects both children and adults, with a higher prevalence among males, it is classified as a developmental disorder since the onset of the symptoms is usually at the early stage of a child’s development (Australian Psychological Society [APS], 2017). In many cases, there is a gradual improvement in the patient’s behaviour during teenage, or the patient may learn to control himself/herself if relevant strategies have been taught (APA, n.d.). Nevertheless, this progress may be significantly limited by the high rate of comorbidity with …show more content…
The correlation between the various subtypes of ASD and the