In 1991, 103 mother-and-infant pairs visited Genevas Guidance Infantile. The infants all displayed functional and behavioural disorders. Ten years later, the same mother-child pairs were re-evaluated by Professor Cramers team, who was thus able to make a number of prospective analyses. What became of the symptoms that the infants had first presented? Did any of the symptoms first displayed indicate a predisposition to other disorders? Can the characteristics that helped them to endure be identified? And what can be said of the role played by cognitive development and parental representations, as well as by protective factors? Professor Bertrand Cramer is a child psychiatrist.