Harvard University created a study that proved that when fewer blue dots were shown, participants still thought there were equal numbers of blue and purple dots MOST humans develop colour vision ...

A new optical-illusion study in the journal Science asks whether a series colorful dots is purple, blue or proof that humans are doomed to a lifetime of sadness and poor decisions. In the study ...

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 ...