Crib-talk between identical twin girls and diary records of their speech were examined. It was found that the subjects developed conventional syntax and vocabulary but adapted them in ways which appropriately expressed their twin status. (Author/SED)

Interpersonal functions of everyday caretaker speech usage are examined when addressed to toddlers, threes and fours. Results support hypotheses derived from Piagetian theory concerning early developments in ego-differentiation. (Author/RM)

Explores spontaneous speech samples from children during the period from one word to multiword utterances in interaction with their French-speaking mothers in order to study the appearance and development of functional changes in their use of language. A longitudinal study of four children revealed the beginnings of references to the past and the…