Why Our Eyes Scan Smoothly Only When Following A Moving Object

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Why can our eyes smoothly scan a moving object like a passing car or the ball at a tennis match (when our head is still), but if we try and duplicate that dynamic without a moving object they, move in big individual movements?

Seems simply to be an involuntary / voluntary thing, but it still baffles me.

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4 Answers

Anonymous 0 Comments

Your eyes aren’t actually moving smoothly. They still “skip” and your brain just fills in the in-between a with what it thinks should be there.

There was a sci-fi book? movie? where monsters lived or moved in the in-betweens so humans couldn’t see them.

https://en.wikipedia.org/wiki/Saccadic_masking?wprov=sfti1

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