

- The baby does not start to babble or point by the time they are one year old
- No single words by 16 months (for ex: mamma, daddy etc.) or two word phrases by age 2
- Does not respond to his/her name
- Loss of language and failure to mix with people
- Poor eye contact
- Repetitive and compulsive lining up of toys of other objects
- He/she does not smile or have social contact
- Impaired ability to interact with peers
- Absence of imaginative or social play
- Repetitive or unusual use of language
- Preoccupation with certain objects or things.
- Inflexibility and adhering to a fixed routine or ritual





- Difficulty determining the meaning of a simple sentence
- Difficulty learning to recognize written words

- Delays in speaking (oral language development)
- Deficits in learning and memory skills
- Lack of social inhibition
- Difficulty with solving problem
- Delays in the development of adaptive behaviors such as self-help or self-care skills
