Science, Space and Technology News 2024
Researchers identified a gene variant that alters eye reflexes in autism, suggesting a new, easy diagnostic method through eye-tracking, promising quicker diagnoses and advancing autism research and treatment.
The researchers found that children with these variants have an unusual form of the reflex that stabilizes the gaze while the head is moving, called the vestibulo-ocular reflex . In children with autism, it seems to go overboard, and this can be measured with a simple eye-tracking device. Since autism affects social communication, ion channel experts like Bender had focused on the frontal lobe of the brain, which governs language and social skills in people. But mice with an autism-associated variant of the SCN2A gene did not display marked behavioral differences associated with this brain region.
They decided to test it with an eye-tracking camera mounted on a helmet. It was a “shot in the dark,” Wang said, given that the two scientists had never conducted a study in humans.
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