Our skin contains millions of nerve endings and touch sensors. When our sensory system goes wrong, we can learn most how our senses help us understand the world around us. Show more

Vision is a complex process involving light rays, special nerve cells and electrical signals. But even tiny disruptions can result in remarkable visual problems. Show more

When disruptions occur between our ears and our brain: we meet a company boss who hears his eyeballs moving and a charity worker whose spinning attacks last for hours. Show more

‘Everything smelled of rotting flesh, even perfume’. How tiny defects in our sensory system can have enormous consequences on how we perceive the world. Show more

Synaesthesia: ‘My sister tastes of blackcurrant yoghurt, my grandmother of thick, condensed milk’. We meet the man who tastes every sound he hears. Show more