大象传媒

The world is full of colour! But, wonders listener Maya Crocombe, 鈥榟ow do we see colour and why are some people colour blind?鈥�

Dr Rutherford and Professor Fry set out to understand how special light-sensitive cells in our eyes start the process of colour perception, why people sometimes have very different experiences of colour and whether, in the end, colour is really just 鈥榠n our heads鈥�.

Dr Gabriele Jordan from Newcastle University explains why lots of men struggle to discriminate between certain colours and why there were lots of complaints from colour-blind viewers when Wales played Ireland at rugby.

Professor Anya Hurlbert, also from Newcastle University, tackles the most divisive of internet images: The Dress! Did you see it as blue-black or yellow-gold? Anya explains why people see it so differently, and why our ability to compensate for available light is so useful.

Finally, Dr Mazviita Chirimuuta, a philosopher at the University of Edinburgh, gives us her take on what all this means: are colours real, or just in our minds?

If you want to see some of the images and activities referenced in the episode read on...
To take the colour perception test which Hannah and Adam do in the epsiode, search for the 'Farnsworth Munsell Hue test' - you can do it online for free.
To see the Dunstanborough Castle illusion as described in the episode, check out the Gallery section on the Curious Cases 大象传媒 website.
To learn more about colour blindness, and for support and resources go to colourblindawareness.org

Producer: Ilan Goodman

First broadcast on 大象传媒 Radio 4 in March 2022.