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Autism: EEG Research May Help in Early Diagnosis

By HERWriter
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Autism related image Photo: Getty Images

A pilot study involving a non-invasive test to evaluate autism risk in infants had an 80 percent accuracy rate in identifying those infants at high risk. This test uses the electroencephalogram (EEG) in conjunction with machine-learning algorithms. The algorithms discern patterns in the EEG results that might otherwise be missed.

This study was done at Children's Hospital Boston. The research was published on February 22, 2011 online in the journal BMC Medicine.

Brain waves are the electrical activity of the brain. EEGs can record this activity through the use of electrodes that have been attached to the child's head.

For a long time, EEG tests have been used to identify those children with epilepsy, and who also have autism. Children with autism display a higher rate of epilepsy than the rest of the population.

EEGs can be useful in detecting the differences between the brain waves of children who have autism, and those who do not. So EEGs are no longer just used to assess seizure activity in epileptics, they can now also be used to detect the differences between the two types of brain waves.

EEGs have been used to evaluate brain waves of a person at rest. Now they are also being used to record brain waves after sensory stimuli. EEGs can also read what parts of the brain are in communication with each other, as well which parts of the brain are emitting various types of brain waves.

EEG testing is considered to be completely safe for the children tested, and can be done without sedation unlike an MRI. The test is painless and can be done easily in just a few minutes in a doctor's office.

Another advantage of the EEG is that it helps in being able to differentiate between autism and attention deficit hyperactivity disorder (ADHD). These two conditions are sometimes misdiagnosed for each other.

Either condition can be characterized by outbursts of temper and withdrawal from the giving and receiving of physical expressions of affection. Children with both of these disorders may be extremely sensitive to such external stimuli as textures of clothing, noise and visual input.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.


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