Human languages can incorporate signs without obvious physical relationship to their referents. The nature of the relationship between sign (i.e., word or sign) and referent in signed and spoken languages is discussed from cognitive and historical research perspectives, and observations are given on the biological bases of this phenomenon.…

This study of the acquisition of kinship terms in English is a test of the hypothesis that lexical items are learned in their order of complexity and of the validity of relational analysis in predicting the order of the acquisition of kinship terms. Earlier studies of kinship terms, Piaget's in particular, are first discussed, as well as the…

This study explores the effect of information focus on the size of the unit decoded by a reader. Sixty students chosen at random from average reading groups in fourth, fifth, and sixth grade levels were studied. Each subject read orally 36 thematic sentence frames presented in random order. Each frame contained a point at which the visual display…

A naturalistic study looked at the acquisition of English by two Japanese boys, aged 4 and 8 years, during a 2.5-year stay in the United States. Data were collected through observation and transcription of spontaneous speech in daily life. Analysis included a variety of features of language use and of the acquisition process, including attitudes…