This paper aims to compare the psychoanalytic understanding of three analysts, sharing a similar theoretical background, with regard to the clinical material of an autistic girl with probable organic impairment. The conclusion is that, although the three analysts’ ideas about the pathogenesis of the girl's developmental disorder are somewhat divergent, a tendency towards convergence can be noted as the therapy goes on. The paper concludes that there is some common ground of understanding about autistic phenomena among psychoanalysts sharing the same affiliation, that combining the individual views of different analysts may enlarge the understanding of the case as a whole and that the technique Tustin used to treat psychogenic autistic children can also be used to treat brain-damaged autistic children.