The article underlines the usefulness of a psychodynamic model based o
n developmental psychoanalytic concepts for the management of children
with pervasive developmental disorders, including the Autistic Disord
er and related clinical entities. It is argued that in spite of the bi
ological and constitutional etiology of these disorders, the variety a
nd fluctuations of clinical phenomenology may be conceptualized as dis
turbances of functions in a developmental continuum, with defects at d
ifferent levels of personality organization according to the developme
ntal profile of Anna Freud and Mahler's theory of separation-individua
tion. Furthermore, during the therapeutic process of children with per
vasive developmental disorders, after the establishment of a relations
hip with the therapist, observation of transitional - like objects use
d by these nonverbal children may provide valuable information as to t
he level of self- object differentiation, the capacity to modulate and
control aggression and the emerging capacity for symbolization, thus
facilitating the formulation of therapeutic interventions.