Discover Freud's case study of Little Hans, a five-year-old boy who developed a phobia of horses. Find out how Freud used psychoanalysis to interpret improved concentration. Case studies: Little Hans - Sigmund Freud. Written by Richard Bukowski. Little Hans. Herbert Graf, little Hans, before his phobia developed, was described as a cheerful and straightforward child. During this case study, Hans was five years old. Hans' father first started documenting. The case of little Hans can be seen as a confirmation of Freud's hypotheses regarding the development of infantile sexuality, which were elaborated in His Three Essays, 1905 four years before the publication of the case. HP 2007. Little Hans: a contemporary overview. The psychoanalytic study of the child, 62 1, 44.