Examines patterns of social interaction among 19 cancer patients ranging in age from 8 to 21 years and their caregivers (i.e., medical personnel, teachers, family, and friends). Conditional probability analyses of patient behavior following caregiver vocalizations at three phases of medical treatment indicate variability and change in patients'…

Presents a method of defining cooccurring constellations or "packages" of maternal facial-visual engagement and head or hand stimulation during face-to-face play with an infant. The functional relevance of these packages is documented in case studies of one four-month-old infant playing with his mother and a stranger. (Author/CB)