11 posts tagged with brain and perception.
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the power and beauty of mathematics

An eternity of infinities (via) [more inside]
posted by kliuless on Feb 2, 2013 - 23 comments

A Watched Clock Never Moves

Have you ever wondered why you don't see motion blur when your eyes flick to a new position? Why, if you sit in front of a mirror and watch yourself, you never see your eyes move? That is saccadic masking, one of the lies your brain tells to avoid confusing you. Have you noticed that the first tick after glancing at a clock with a second hand can take more than one second? No, it's not just you! That's a related phenomenon called chronostasis, or more commonly the stopped clock illusion.
posted by gilrain on Aug 16, 2012 - 46 comments

The Soul Niche

Swimming around in a mixture of language and matter, humans occupy a particular evolutionary niche mediated by something we call 'consciousness'. To Professor Nicholas Humphrey we're made up of "soul dust": "a kind of theatre... an entertainment which we put on for ourselves inside our own heads." But just as that theatre is directed by the relationship between language and matter, it is also undermined by it. It all depends how you think it.
posted by 0bvious on Feb 4, 2011 - 17 comments

Believing is seeing, seeing is hearing

Is seeing believing? BBC Horizon looks at sensory perception, illusions and the interplay of our different senses. (Full program for UK viewers here). Makes you feel like you've entered The Twilight Zone. [more inside]
posted by philipy on Oct 18, 2010 - 16 comments

The Body Swap Illusion

If I Were You: Perceptual Illusion of Body Swapping. Expanding on previous experiments, researchers discover how to induce a "body-swap" illusion, whereby subjects perceive the body of another as if it were their own.
posted by homunculus on Dec 4, 2008 - 22 comments

Video Ergo Sum

Virtual Out-of-Body Experience. Using two procedures to deliberately scramble a person's visual and tactile senses, neuroscientists are able to induce "out-of-body" experiences in people. The effect is the same as the 'rubber hand illusion', but extends the effect to the whole body instead of just one limb (you can try the hand illusion for yourself).
posted by homunculus on Aug 24, 2007 - 11 comments

Switching off self-awareness

Researchers have found that prolonged concentration on a difficult task actually switches off a person's self awareness. Fancy experiencing this sensation for yourself? That would be an oxymoron in existence. Just lay back and let the orgasm take hold.
posted by 0bvious on Apr 20, 2006 - 31 comments

This so called reality

If the universe is a hologram and the healthy human brain a valve of consciousness then where'd this mental infinity come from? Are we simply living the simulacrum? Or does Pi protect us all, forever, infinitely?
posted by 0bvious on Nov 22, 2005 - 39 comments

Brain tricks

Red and green dots have never been so interesting. At least to a geek like me. I love it when my brain plays tricks on me.
posted by jeremy on May 21, 2004 - 33 comments

Sensestage

The maps of perception.
2nd link: java applet.
posted by Gyan on Apr 25, 2004 - 6 comments

Enjoy the plasticity of your brain!

The McCollough effect is a visual illusion somewhat similar to regular color aftereffects, but the working mechanism is different, and despite a wealth of theories, not entirely explained. Once the effect is established, it does not seem to go away and can last for days or even weeks. Proceed at your own risk.
posted by ikalliom on Apr 10, 2004 - 22 comments

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