2396

"In 1975 two researchers show that if you stare at the red and green lights for 15 minutes, the aftereffect can last three and a half months. This active recalibration of the world is why in the 1980s many people began to see text in books appearing to have a red tint. At the time, the population began to use computer monitors did you word processing. Unlike modern monsters,, until the text appears as lines of green on a black background. People would stare at the horizontal green roads for hours at a time, and consequently, when they picked up a book, the lines of text with shaded with the  complementary color, read. Their brains were adjusting to a world of horizontal green lines, and their reality changed accordingly. The computer users also experienced the solution when they looked at the IBM logo emblazoned on the front of the floppy disk sleeve, it looked tinged with red. designers at IBM we're flummoxed, he had definitely not printed there black and white design with red, and yet customers insisted that they had. "

Livewired, p. 162 

https://en.wikipedia.org/wiki/McCollough_effect