In this description of an unusual family, accounts are given of the later development of two sisters who had suffered severe social and emotional deprivation in infancy. The development of a half brother who was raised elsewhere is recounted, and discrepancies in development are discussed.(RH)

Reviews five previously published and one novel case history of children who suffered extreme deprivation in early childhood. Aspects of cognitive, emotional, and social development are critically appraised, and three issues central to theories about the origins of developmental disorders are addressed.(RH)

The early development of self-injurious behavior (SIB) in 16 young children with developmental disabilities was tracked over an 18-month period. Naturalistic observations in each child's classroom found a significant association between early SIB and low levels of social contact, which may be considered as a risk marker for SIB exacerbation.…