Most experts agree that it's best to catch and treat autism as early as possible. What are the early signs of autism in children?
There are a number of red-flag symptoms that parents and teachers can look for. These may be evident even in a child as young as one year old -- or may not become evident until age three or older.
There are a number of red-flag symptoms that parents and teachers can look for. These may be evident even in a child as young as one year old -- or may not become evident until age three or older.
Some signs to look for include:
unresponsiveness to people, and/or intent focus on one item to the exclusion of others for long periods;
lack of response to their name;
lack of eye contact;
difficulty interpreting what others are thinking or feeling;
delay in gaining speech and/or odd speech patterns;
repetitive movements such as rocking or twirling, or self-abusive behavior such as head-banging;
speaking in a flat or sing-song voice;
unusually low or high sensitivity to pain, noise, light or crowds.
Source: About.com