The vision thing: how babies colour in the world

We know that babies don’t just see in black and white. But what colours can they see – and how key is it to their development?To experience the Guardian’s latest virtual reality film First Impressions: a virtual experience of the first year of life, go to theguardian.com/vr
Sitting in a padded car seat, a small black and white bullseye stuck to his cheek, four-month-old Teo Bosten-Lam gazes at a computer. The screen is a mottled grey, like the snow on a old-fashioned television