Examines whether systematic differences exist in babbling and first words of infants from different language backgrounds (English, French, Japanese and Swedish) and asks whether differences result from the phonetic structure of the languages. Statistically significant differences discerned in the babbling phonetic selection indicates that phonetic…

A microgenetic approach to studying grammatical morpheme learning uses longitudinal data from two children learning English in different ways. Eight general attributes of morphological systems are proposed that will promote or inhibit the emergence of filler syllables during development. (Contains 86 references.) (Author/LB)