Purpose: To determine the concurrent validity of the Conditioned Assessment of Speech Production (CASP; Ertmer & Stoel-Gammon, 2008) and data obtained from speech samples recorded at the same intervals. Method: Nineteen children who are deaf who received cochlear implants before their 3rd birthdays participated in the study. Speech samples and…

Prelinguistic vocal development is "the process by which infants and toddlers produce increasingly more complex, phonetically diverse, and speech-like utterances before they say words on a regular basis" (Ertmer, 2005, p. 85). Research has shown that children with bilateral, moderate-to-profound hearing loss experience delays and deficits in vocal…

This research disputes the traditional position on babbling by showing that the phonetic content of babbled utterances exhibits many of the same preferences for certain kinds of phonetic elements and sequences that have been found in the production of meaningful speech by children in later stages of language development. (Author/RM)

Traditional research methods of recording infant verbal behavior, namely, descriptions by a single observer transcribing the utterances of a single infant in a naturalistic setting, have been inadequate to provide data necessary for modern linguistic analyses. The Center for Research on Language and Language Behavior has undertaken to correct this…

Indicates that 18- to 20-month-old infants can detect the correspondence between auditorially and visually perceived speech; that is, they manifest some of the components related to lip-reading phenomena in adults. This demonstration of the bimodal perception of speech in infancy has important implications for social, cognitive, and linguistic…

The first part of this bibliography contains annotations of articles on the acquisition of voice onset time (VOT) as the marker of a phonological contrast, that is, the studies concern children who are already developing a phonological system. The most common questions are the following: (1) When children begin to produce initial stops, how are…

A case study analyzed the babbling and speech production of an infant, aged 20 to 24 months, whose family members spoke Portuguese, English, and French interchangeably. Focus was on vowel production, choice of lexicon, and the relationship between babbling and speech in the interaction of his languages. The child's utterances were recorded in…

One of the most remarkable aspects of the babbling of some babies is that it is produced with intonation contours that sound very much like adult sentence melodies. This study reviews the literature and examines longitudinal data collected from seven children. Some of the non-adult-like syntactic uses made of intonation by children for…