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Every few seconds, our eyelids automatically shutter and our eyeballs roll back in their sockets. So why doesn't blinking plunge us into intermittent darkness and light?
New research led by UC Berkeley shows that the brain works extra hard to stabilize our vision despite our fluttering eyes.
[...] In a study published today in the online edition of the journal Current Biology, they found that when we blink, our brain repositions our eyeballs so we can stay focused on what we're viewing.
When our eyeballs roll back in their sockets during a blink, they don't always return to the same spot when we reopen our eyes. This misalignment prompts the brain to activate the eye muscles to realign our vision, said study lead author Gerrit Maus, an assistant professor of psychology at Nanyang Technological University in Singapore.
Target Displacements during Eye Blinks Trigger Automatic Recalibration of Gaze Direction. Current Biology, 2017; DOI: 10.1016/j.cub.2016.12.029
(Score: 3, Interesting) by maxwell demon on Friday January 27 2017, @07:24AM
So you see black every few seconds throughout the day? Because if you pay attention you see lots of things that are normally calculated away by your brain. For example, if I want, I can clearly see that my eyes deliver different images, which are misaligned at any distance other than where I focus. But in normal everyday life, my brain calculates that away; I'm not constantly distracted by it. Also, when I think of it, I clearly notice the nose in my field of view (on different sides for the two eyes). But when not explicitly thinking of it, the nose "disappears" completely from my perception.
The Tao of math: The numbers you can count are not the real numbers.
(Score: 2) by wonkey_monkey on Friday January 27 2017, @07:18PM
But when not explicitly thinking of it, the nose "disappears" completely from my perception.
I knew someone who broke her nose and was distracted for weeks because it wasn't in quite the right place in her visual field any more. She eventually got used to it, but it took a while.
systemd is Roko's Basilisk