If there’s ever excuse to publish an optical illusion as cool as the “Rotating Snakes,” I’ll take it. This illusion was invented in 2003 by Akiyoshi Kitaoka of Ritsumeikan University in Japan, and ever since, Kitaoka and other scientists have been trying to figure out why it works. A new paper by Stephen Macknik at the Barrow Neurological Institute in Phoenix may have the answer.
As you’ll notice, the circles seem to rotate in response to where you look at the illusion. So Macknik and his colleagues tracked the movement of people’s eyes as they gazed at two of these wheels on a computer screen. Their subjects kept a finger pressed on a button, lifting it whenever they seemed to see the wheels move.
Macnick and his colleagues found a tight correlation between the onset of the illusion and a kind of involuntary movement our eyes make, known as microsaccades. Even when we’re staring at a still object, our eyes keep darting around. These movements, called microsaccades, help us compensate for a peculiar property of the eye: if we stare at an object for too long, the signals each photoreceptor sends to the brain become weaker. Microsaccades refresh the photoreceptors with a different input and breath new life into our perception.
- SQM TechnologiesAccoun Executive, 2011 - present
- game export w/hadmin facility controller, 2009 - 2011
outgoing and take chances never relexed and im annoyed buy the simplest stupid things that morons do. nature and insticts are my strongest weapon thats why i dont carry guns and non violance. get furstrated when broke and rather die than to live without doller, pond or rand around me to smell. spontanous weman with atitude pull me like magnet. just love this lifeeven yhough its tough. always striving for the best
- University of South Africaskilled supply admin clerck, 2009 - present