#prev next BBC Accessibility links * Skip to content * Accessibility Help BBC iD Notifications BBC navigation * News * News * Sport * Weather * Shop * Earth * Travel * Capital * iPlayer * Culture * Autos * Future * TV * Radio * CBBC * CBeebies * Food * iWonder * Bitesize * Travel * Music * Earth * Arts * Make It Digital * Taster * Nature * Local * Menu Search Search the BBC ____________________ (BUTTON) Search the BBC BBC Two Horizon * Home * Episodes * Clips * Horizon Facebook Sorry, this episode is not currently available Is Seeing Believing? Horizon, 2010-2011 Episode 4 of 15 [X] Horizon explores the strange and wonderful world of illusions - and reveals the tricks they play on our senses and why they fool us. We show how easy it is to trick your sense of taste by changing the colours of food and drink, explain how what you see can change what you hear, and see just how unreliable our sense of colour can be. 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. He is now able to create a vision of the world by clicking his tongue which allows him to echolocate like a bat. And in a series of MRI scans, scientists are now looking to find out if Daniel's brain may have actually rewired itself enabling him to use sound to create a visual image of the world. Show more / Show less (BUTTON) Share this page Share this with * Digg * Facebook * Google * LinkedIn * Reddit * StumbleUpon * Twitter Copy this link http://www.bbc.co.uk/programmes/b00vhw1d Read more about sharing. Release date: 18 October 2010 1 hour Last on Sun 16 Oct 2016 23:25 BBC Four More episodes Previous What Happened Before the Big Bang? — 2010-2011 View Programme information Next Miracle Cure? A Decade of the Human Genome — 2010-2011 View Programme information See all episodes from Horizon Clips See all clips from Is Seeing Believing? Music and featured items See all from Is Seeing Believing? Credits Role Contributor Director Naomi Austin Producer Naomi Austin Broadcasts See all broadcasts of Is Seeing Believing? (5) Horizon on Facebook Human face and robot face in profile Shareable photos, videos and discussion for each episode * Horizon's official Facebook page (www.facebook.com) You may also like View all Similar programmes By genre: * Factual > Science & Nature By format: * Documentaries BBC Two homepage * Home * Schedule * Programmes * TV Guide Explore the BBC * News * News * Sport * Weather * Shop * Earth * Travel * Capital * iPlayer * Culture * Autos * Future * TV * Radio * CBBC * CBeebies * Food * iWonder * Bitesize * Travel * Music * Earth * Arts * Make It Digital * Taster * Nature * Local * Terms of Use * About the BBC * Privacy Policy * Cookies * Accessibility Help * Parental Guidance * Contact the BBC * Advertise with us * Ad choices Copyright © 2016 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking. Sign in to the BBC, or Register Added item image " " Added, go to My Music to see full list. More from