In this interview, Professor Kahn gives us the keys to a modern understanding of relationships between genetics and psychiatry, allowing us to go beyond ideological rifts and the over-simplified dichotomy between the innate and the acquired.  

He uses precise examples as a basis, such as schizophrenia, autism and behavioural problems, situating the exact place of the genetic substrate and environmental factors. He thus helps genetics regain its letters of nobility by widening it to social, moral and philosophical dimensions.

He also covers the field of the peri-natal period with clarifications in scientific terms, without forgetting the fundamental ethical aspect that concerns him.