It has come to be generally accepted that the psychopathological effects of psychosocial stress and adversity are diagnostically nonspecific. There is a good deal of supporting evidence in support of this assumption, even though it may be that the nonspecificity has been exaggerated through a failure to take account of comorbidity. This chapter presents findings on the designation of deprivation-specific psychological patterns (DSPs). These included an early onset (at least by age 6 years, the earliest age at which data were available for the whole sample) and persistence to 11 years of age. The persistence to 11-year requirement was introduced particularly because minor manifestations of DA were so frequent at age 6 years in the pooled comparison group. Without the persistence criterion, the association of DSPs with institutional deprivation would be much weakened. (Contains 5 tables and 8 figures.)