He was sent to a series of state-run mental hospitals, such as the Athens Lunatic Asylum, where, by his report, he received very little help. While he was in these hospitals, Milligan displayed 10 selves. Among these were Arthur, a prim and proper Englishman, Allen, a con man and manipulator, Ragen Vadascovinich, a Yugoslavian communist who had committed the robberies in a kind of Robin Hood spirit, and Adalana, a nineteen-year-old lesbian who craved affection and who had supposedly committed the rapes.
Finally Milligan received treatment from psychiatrist David Caul, who identified an additional 14 selves and helped him and the other "selves" to communicate with each other, and to work out a method by which he could voluntarily integrate all of his selves. However, when Milligan maintained this mindset for any protracted length of time, he reported that the talents his selves possessed as individuals were diminished. In interviews, Milligan still refers to this situation with the words "The whole was less than the sum of the parts."