The optical illusion involves a series of 1,000 dots ranging from very blue to very purple. In the study, researchers asked participants to judge whether each dot was blue. For the first 200 ...

Do you see these dots as blue or purple? A new study has revealed your perception can change based on how often we are exposed to certain thingsCredit: Instagram Researchers from Harvard ...

“My wife said it looked like one of those dots candies that you peel off of paper, because the back of it was flat and it was a very light shade of purple.” But this was no tooth-cracking candy.