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Arthur Shapiro
Professor, American University---I tweet about illusions: perceptual, cognitive, and social. Co-editor: The Oxford Compendium of Visual Illusions
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Arthur Shapiro retweeted
Massimo Jul 16
This camouflaged peacock flounder is so amazing that it's pretty much invisibile [source: ]
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Arthur Shapiro retweeted
ScienceTime Jul 12
お家で作れる可愛いおもちゃ
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Arthur Shapiro Jul 9
It is a poll to go along with your chromostereopsis image.
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Arthur Shapiro Jul 9
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Arthur Shapiro Jul 9
Replying to @AkiyoshiKitaoka
Anya Hurlbert has published an explanation of why reversed chromostereopsis (blue closer than red) can occur.
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Akiyoshi Kitaoka Jul 9
Replying to @AkiyoshiKitaoka
How do you see?
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Arthur Shapiro retweeted
Akiyoshi Kitaoka Jul 9
Some observers see red in front of blue, while others see blue in front of red. (chromostereopsis)
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Arthur Shapiro Jul 7
You mean arrrr-tie the pirate. Just a disguise I use for studying the pulfrich effect.
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Arthur Shapiro Jul 3
He is a happy dog. On this occasion he looks particularly happy because I am holding a treat just a few inches above my phone's camera.
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Arthur Shapiro Jul 3
Leaving today for the International Color Vision Society conference in Riga, Latvia (). No illusion GIFs for the next few weeks. Instead, here is a picture of my dog ... he's such a good boy.
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Arthur Shapiro retweeted
Steven Dakin Jul 2
Funny. Ben Hamm is an engineer who used deep learning to train his video-equipped cat flap to deny entry whenever the cat is attempting to bring prey into the house. via
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Arthur Shapiro retweeted
Massimo Jul 1
How neat shadows turn a simple train model into a kind of optics experiment [source: ]
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Michael Friesen Jun 28
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Akiyoshi Kitaoka Jun 29
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Arthur Shapiro retweeted
Massimo Jun 29
A domino can knock over another domino about 1.5x larger than itself. Here are the conditions under which a row of increasing dominoes is able to keep tumbling over [gif: ]
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Arthur Shapiro retweeted
Flaieh Jun 29
Green lines change color to blue when the lines are vertically oriented.
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Mark D. Scherz Jun 28
Hi yes hello here are 106 species of frogs from Madagascar that I've photographed in the last six years. I made this slide for my PhD defence to try to illustrate just how incredible the diversity of Madagascar's frogs really is.
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Akiyoshi Kitaoka Jun 26
The upper side appears to be farther than the lower one, though the reversal is true.
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Arthur Shapiro Jun 26
Curtains: a brightness illusion! One disk looks like a shadow on the curtain, and the other looks like a spotlight. Always surprising how--sometimes--the tilt of an object relative to the background can completely eliminate a perceptual difference.
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Arthur Shapiro retweeted
Akiyoshi Kitaoka Jun 15
第11回錯視・錯聴コンテストの作品を募集中です。締め切りは、2019年9月30日(月)日本標準時24時です。詳しくは、こちら。↓
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