Analysis of speech samples from British female adults (N=8) revealed that the subjects increased vocal pitch when addressing young children, but not as much as previously studied North American subjects did. Pitch increases were more commonly observed in free speech than in reading-aloud conditions. (23 references) (Author/CB)

Describes adjustments in speech patterns made by two- and three-year-olds when talking to their 14-month-old siblings and compares these changes with those made by mothers addressing their babies. Individual differences between the children indicate two types of influence on the adjustments made--pragmatic and emotional. (EKN)