Ground-breaking work by developmental psychologist Professor Uta Frith has revolutionised our understanding of autism. Beginning in the 1960s, Professor Frith's research has overturned the long-held belief that autism was a social or emotional disorder, showing instead that it's the result of physical differences in the brain. Uta Frith has been talking to Louise Hidalgo.

Picture: Uta Frith at her desk at the Medical Research Council Developmental Psychology Unit in London in the late 60s/early 70s (exact date unknown). From the personal collection of Uta Frith.