This particular upside-down facial feature perception glitch is known as the Thatcher effect.
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Perception is fundamentally compositional. We make sense of novel stimuli (things we're not used to) by parsing its elements, then composing them following a known template. The left image and the right image are the same, rotated. Note how you interpret the upside-down face.pic.twitter.com/5pWLUSj0oR
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Compositionality is also very salient in children's drawings. On that note, children's drawings are an amazing source of insights about the human mind.
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Wtf did you just do to my brain
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Sounds like one of those "Reference Frames" that Jeff Hawkins is talking about. Your posts are sometimes a combination of philosophical, neurological, and observational in nature. When you have this clear in your mind will there be another delightful paper or book?
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Never imagined myself getting spooked by a reverse-adele
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Neural Networks also show the effect https://www.nature.com/articles/s41467-021-22078-3 … However, I suspect the effect as measured here will disappear when trained on a rotation equivariant network -- it seems to be a consequence of filters (and their compositions) that are used to ingesting upright images.
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*to the network ingesting. and by the network, I mean one that is not sensitive to rotations.
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Rotated or flipped along vertical axis?
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I think overall face is vertically flipped and then facial features like eyes and lips mesh are further flipped vertically. Pretty interesting it's!
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That's a very strange thing. Really.
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