Optical illusion: Girl in inverted colors

1. Stare at the red dot for 30 seconds. 2. Look at a white wall and start blinking.

This optical illusion is only for those with high I

Optical illusion: This photo of a castle will make your brain see colours that aren't even there - Watch

Afterimage/Negative Photo Illusion (See a negative in color)

12 optical illusions that show how colour can trick the eye, The Independent

5 Optical Illusions To Test Your Personality: Interesting QUIZ

Optical illusion turns black and white images into COLOUR

How did you see the optical illusion at first glance? Did it agree with the study's conclusions about your age, that younger people see the young woman & older people see the

Your Brain Develops The Negative – Webvision

Incredible Optical Illusion That Makes Two Blue Boxes Appear to Rotate When the Background Changes

Four optical illusions and the science behind them

Optical illusion pictures: All the best mind-bending images from around the world

This optical illusion transforms a negative image into full colour - but can you see it?