BBC Horizon – Is Seeing Believing?

We show how easy it is to trick your sense of taste by changing the colors of food and drink, explain how what you see can change what you hear, and see just how unreliable our sense of color can be.orizon explores the strange and wonderful world of illusions – and reveals the tricks they play on our senses and why they fool us.

But all this trickery has a serious purpose. It’s helping scientists to create a new understanding of how our senses work – not as individual senses, but connected together.

It holds the intriguing possibility that one sense could be mapped into another. This is what happened to Daniel Kish, who lost his sight as a child.