The author gives an overview of selected research results concerning d
eprivation and protection. Comprehensive retrospective and prospective
studies show one uniform result: The presence of at least one trusted
person in the (early) childhood considerably lowers the probability o
f later mentally (co-)determined disturbances. On the other hand the a
bsence of such persons increases the probability of later illness. Onl
y a minority of adults (10-30%) succeeds in mastering a difficult chil
dhood in a (relatively) unproblematic manner. The possible reasons for
this are presented. Contrary to some divergent findings it can. meanw
hile be assumed that infant day care due to maternal employment during
the first year of the child's life is usually not a risk factor with
respect to insecure attachment or later psychopathology. Finally, the
relationship between psychoanalysis and deprivation-protection researc
h and the respective methodological particularities are outlined.