A series of five programmes on the brain.
4: Theorems of Vision
' Modern neurophysiology has learned much about the operation of the individual nerve cell, but unpleasantly little about the-meaning of the circuits they compose in the brain.' Furthermore, as Professor David Marr of MIT argues, we have yet to define what problems the brain solves when, for example, we see. He discusses with John Maddox his new work which aims to provide a comprehensive account of intelligence.