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Until this discovery, no reliable physiological marker for ADHD has been known. A new study indicates that involuntary eye movements are a flawless and safe sign of ADHD, and researchers believe they can now offer an objective test for ADHD, which is impossible to fool. 

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In addition, the same indicator also provides a measure of effective treatment, as eye movements are normalized by stimulant medication.

This is what Science Daily writes on its website based on a brand new study published by Israeli researchers.

 

ADHD: The most commonly diagnosed and misdiagnosed behavioral disorder

Science Daily writes:





ADHD is the most commonly diagnosed - and misdiagnosed - behavioral disorder among American children, according to the Centers for Disease Control and Prevention in the United States.

Unfortunately, there are currently no reliable physiological markers for diagnosing ADHD. Physicians generally diagnose the disease by recording a medical and social history of the patient and family, discussing possible symptoms, and observing the patient's behavior.

It is emphasized that the lack of objective indications for ADHD creates a great deal of room for misjudgment, which in turn can lead to over-medication with stimulants, which neither children nor their parents benefit from.

 





Involuntary eye movements can be an objective sign of ADHD

In a new study published in the journal Vision Research by researchers from Tel Aviv University, it is claimed that involuntary eye movements accurately reflect the presence of ADHD.

Until this discovery, there has been no reliable physiological marker for ADHD.

Thus, one may be close to having found a more objective tool for diagnosing ADHD than one has been able to find so far.

The study had 22 adult subjects who performed a 22-minute test over twice, and where eye movements were measured while the subjects performed attention-demanding tasks. Half of those who took the test had an ADHD diagnosis, and these took the test without medicine once and with medicine the second time. People without ADHD constituted the control group.

We had two goals with this study, says Dr. Fried who himself was diagnosed with ADHD as an adult.

The first was to create a new diagnostic tool for ADHD, and the second was to test whether ADHD medications really work - and we found that they do.

 

A physiological marker for ADHD and the demonstrable effect of medicine

The study showed that there was a significant difference between people with ADHD and those who did not have ADHD, on the use of involuntary eye movements, and at the same time that there was a significant difference between ADHD people's own control of involuntary eye movements depending on whether they were unmedicated or affected. of medication.

The researchers found that there is a direct link between ADHD and the inability to suppress eye movements in anticipation of visual stimuli. 

In addition, the researchers found that people with ADHD performed as well as the control group when they were medicated with stimulants. At that time, the ADHD group had a normally good ability to suppress involuntary eye movements, so that the performance was completely on average with the performance in the control group.

 

- Impossible to pretend to have involuntary eye movements

This test is affordable and accessible, and offers a practical and foolproof tool for medical professionals, says Dr. Fried according to Science Daily.

With other tests for ADHD, subjects may distort actual conditions, or intentionally fail the tests, but this test is not possible to deceive. What we measure are involuntary eye movements. In this sense, they constitute a common, physiological marker for ADHD.

Our study also provides clear evidence that stimulants (methylphenidate) act as a treatment for ADHD. It is certainly not a placebo effect, as some have claimed.

The researchers are currently conducting more extensive experiments on larger control groups to further investigate the test.

 

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