OMG science
fromwww.scientificamerican.com
2 days agoA curious secret of color vision revealed by scientists
The eye focuses on the most prominent color in the environment, not just the brightest or middle wavelengths of light.
#dual-iris-contrast
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#color-perception #vision-restoration #metastatic-infection #vision #nearsightedness #virtual-reality
Philosophy
fromThe Conversation
2 weeks agoHuman vision: what we actually see - and don't see - tells us a lot about consciousness
Significant visual processing occurs unconsciously in the brain, as demonstrated by blindsight and inattentional blindness phenomena where people perceive visual information without conscious awareness.
fromwww.theguardian.com
1 month agoCan you solve it? You won't believe these optical illusions!
The illusion is the latest masterpiece from Olivier Redon, a French-American inventor, who has had his creations used in museums and on TV programmes around the world. For today's puzzles, I present five of Redon's most brilliant images. The challenge is to figure out how he managed to create them.
Photography
fromBig Think
1 month agoThe brain after blindness: How newly-sighted people build a visual world
If we told them to look at the face, they could usually manage it. But they were mostly looking at the hands. The Prakash children eventually learn to look at faces when spoken to - usually a few months after their surgeries. Their experiences reveal that seeing doesn't come naturally the moment a person is cured of blindness. Newly-sighted people must learn to see.
Science
Medicine
fromArs Technica
2 months agoThis may be the grossest eye pic ever-but the cause is what's truly horrifying
Hypervirulent Klebsiella pneumoniae causes aggressive, metastatic infections in healthy people, forming liver abscesses and spreading via bloodstream to lungs, brain, eye, and other tissues.
fromPsychology Today
2 months agoFlashed Face Distortions Across the Visual Field
In 2011, researchers Jason Tangen, Sean Murphy, and Matthew Thompson at the University of Queensland discovered a striking visual illusion while preparing a set of face images for a study. As they were going quickly through the faces to check their spatial alignment, they started noticing that the faces appeared highly distorted, almost cartoonish. They then realized that these distortions were most pronounced when the faces were flashed about 4-5 times per second in peripheral vision.
Psychology
fromPsychology Today
1 month agoWhy Your Eyes Like What Your Eyes Like
Real estate with ocean views, stunning mountain vistas, and wide-open green spaces sell at premium prices because humans find those settings pleasing [1-5]. Certain color combinations in fashion-such as brown and forest green-blend harmoniously, while others, such as hot pink and orange, clash. And our eyes like certain proportions in visual objects (like buildings and human faces) but not others.
Science
Medicine
fromenglish.elpais.com
1 month agoBrain implant restores vision to a man blinded by an optic nerve injury
A 4x4 mm microneedle implant in the visual cortex restored partial vision in a NAION patient, enabling light perception, movement detection, object identification, and reading large characters.
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