"Optical illusions come in all forms, from the cognitive to the physiological, often boggling our brains beyond our understanding. Deepening our understanding of these fascinating phenomena, a new study has recently revealed how the iconic 'Kanizsa square' illusion works, thanks to the help of lasers and some rodent friends. The best optical illusions are often the simplest, making the most basic visuals mind-meltingly perplexing."
"Deepening our understanding of these fascinating phenomena, a new study has recently revealed how the iconic 'Kanizsa square' illusion works, thanks to the help of lasers and some rodent friends."
Optical illusions span cognitive and physiological origins and can strongly distort perception. Lasers and rodent experiments revealed mechanisms underlying the iconic Kanizsa square illusion, showing that simple visual cues can create powerful illusory percepts. The Kanizsa square arises from minimal stimuli that prompt the visual system to infer edges and shapes where none exist. Simple configurations thus produce robust perceptual effects that illuminate how sensory processing and neural circuitry construct coherent scenes. Experimental intervention with targeted stimulation and animal models provides a route to map circuit-level causes of perceptual filling-in and apparent contours. These findings link basic sensory physiology to higher-order perceptual outcomes.
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