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Autism Spectrum Disorders Health Center

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New Early Clue to Autism

Autism Possible in at-Risk 1-Year-Olds That Don't Respond to Their Names
WebMD Health News
Reviewed by Louise Chang, MD

April 2, 2007 -- Babies that don't respond to their names by age 1 likely have a developmental abnormality -- perhaps even autism, a MIND Institute study shows.

"Failure to respond to name at the well-child 1-year checkup may be a useful indicator of children who would benefit from a more thorough developmental assessment," suggest Aparna S. Nadig, PhD, of the University of California Davis MIND Institute in Sacramento, and colleagues.

Even so, not all of these children will fail to develop normally. And just because a 1-year-old can respond to his or her name doesn't mean that child won't develop autism.

But the study marks a big step forward as researchers look for ways to identify autism -- in all its many forms -- as early as possible. That goal has become vastly more important in recent years. Researchers have found that autism can be far less severe in kids who get early treatment, says Geraldine Dawson, PhD, director of the Autism Center at the University of Washington in Seattle.

"The really exciting thing is that by beginning early we are able to prevent the full-blown autism syndrome," Dawson tells WebMD. "If we can work with a baby at the time those brain systems are developing, we think they will be much more responsive to treatment."

The Nadig study and Dawson's editorial appear in autism-themed April 2007 issue of Archives of Pediatrics & Adolescent Medicine.

Babies at Risk of Autism

Nadig and colleagues studied 55 6-month-olds and 101 1-year-olds considered "at risk" of autism because they had an older brother or sister already diagnosed with autism. They also studied 43 6-month-olds and 46 1-year-olds not at risk of autism as a control group.

They gave the babies a simple test. The child sat at a table, either in a baby seat or in its mother's lap. As the baby played with a toy, a researcher stood behind the child and called its name in a normal voice. If the child did not stop playing with the toy and turn to make eye contact with the stranger, the researcher called the child's name again. Each child got three chances to respond.

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