Previous studies already found that children with autism have slow brain responses to sounds.
This new research observed that newborns who were later diagnosed with autism also had slower brain responses to sounds.
Well, this tells us for some of the patients, it’s already happening at birthand maybe before.
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The newborns ears are covered with earphones that emit a series of soft clicks.
Electrodes on their forehead and neck then measure the resulting brainwave activity.
A computer records the responses and then compares them against predetermined response ranges.
This is a significantly lower sound level than what is typically used during ASD screening.
The ABR is a poor mans [electroencephalogram] EEG.
The data were then checked against the Florida Department of Educations records of children with ASD.
Earlier identificationand interventioncan have significant impacts on children.
We know that the brain has a much higher plasticity at younger ages, Kohane says.
That sometimes makes the difference between being able to live independently or not.
Will the Test Be Used In the Future?
They therefore need to replicate their findings to determine whether the test can provide clinically useful data.
It’s a great opportunity to move forward.
Researchers arent yet ready to recommend clinicians use the standard hearing test to diagnose autism.
I just want to be clear: Our findings are not ready for prime time, he says.
It is encouraging, and … we’re thinking about how this test can evolve for the future.
2007 May 1; 75(9):1349-1352.
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