Here are some facts that can help you identify the early symptoms of autism.
At 12 months
A typical child: Turns his head when he hears his name.
A child with ASD: Does not turn to look when called, even if his name has been repeated several times, but he does respond to other sounds.
At 18 months
A child with speech delays, but not Autism: Uses his finger to point, gestures, or facial expressions to compensate for his lack of speech.
A child with an ASD: He may not make attempts to compensate for your speech delay or simply speak by imitating or repeating what heard on television or what just heard.
At 24 months
A typical developing child: Bring an image to show to you and share his/her joy with you.
A child with ASD: Can bring a juice jar to ask you to open it, but there is no eye contact with you and doesn’t show joy in playing together.