Breakthrough in understanding how human eyes process 3-D motion

Scientists at the University of York have revealed that there are two separate ‘pathways’ for seeing 3-D motion in the human brain, which allow people to perform a wide range of tasks such as catching a ball or avoiding moving objects.

The new insight could help further understanding into how to alleviate the effects of lazy eye syndrome, as well as how industry could develop better 3-D visual displays and virtual reality systems.

Much of what scientists know about 3-D motion comes from comparing the ‘stereoscopic’ signals generated by a person’s eyes, but the exact way the brain processes these signals has not been fully understood in the past.

Scientists at the Universities of York, St Andrews, and Bradford have now shown that there are two ways the brain can compute 3-D signals, not just one as previously thought.

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