Be surprised by Professor Colin Blakemore 5: Vive la différence
Because of their great sensitivity and the incredible range of intensity over which they must work, our senses are fighting a constant battle against too much information Fortunately, sense organs and the nerves which transmit the messages have developed clever ways of detecting and coding; most sensory systems detect changes and differences. These tricks of coding lead to all sorts of peculiar illusions.
Presented for television by BRIAN Johnson (Final lecture tomorrow at 2.15 pm)