Purpose: The study sought to determine whether the onset of canonical vocalizations in children with cochlear implants (CIs) is related to speech perception skills and spoken vocabulary size at 24 months postactivation. Method: The vocal development in 13 young CI recipients (implanted by their third birthdays; mean age at activation = 20.62…

We investigate bilingual children's perception of assimilations, i.e. phonological rules by which a consonant at a word edge adopts a phonological feature of a neighboring consonant. For instance, English has place assimilation (e.g., "green" is pronounced with a final [m] in "green pen"), while French has voicing assimilation…

Does the intensification of what can be called "language-specific speech perception" around reading onset occur as a function of maturation or experience? Preschool 5-year-olds with no school experience, 5-year-olds with 6 months' schooling, 6-year-olds with 6 months' schooling, and 6-year-olds with 18 months' schooling were tested on…

Acquisition of phoneme-grapheme correspondences, a key concept of the alphabetic principle, was examined in young children who are deaf or hard of hearing (DHH) using a semantic association strategy embedded in two interventions, the Children's Early Intervention and Foundations for Literacy. Single-subject design experiments using multiple…

This study investigated whether task instructions affect sound-isolation performance. The effects of phoneme class and phoneme position were also assessed. Two hundred Dutch kindergartners were presented with a free-sound-isolation task and its constrained counterparts: an initial-, a middle-, and a final-sound-isolation task. All tasks contained…

Several recent experiments indicate that, when learning words, children are not as sensitive to phonemic differences (e.g., /d/ vs. /t/) as they are in discrimination tasks [Pater, J., Stager, C. L., & Werker, J. F. (2004). "The perceptual acquisition of phonological contrasts." "Language," 80, 384-402; Stager, C. L., & Werker, J. F. (1997).…

This study examined the speech perception, speech, and language developmental progress of 25 children with hearing loss (mean Pure-Tone Average [PTA] 79.37 dB HL) in an auditory verbal therapy program. Children were tested initially and then 21 months later on a battery of assessments. The speech and language results over time were compared with…

Examined the effects of rounded and unrounded vowels on the perception of the voiceless fricatives "s" and "sh" by adults and by young children who could and could not produce both sounds. Concluded that productive mastery is not critically responsible for perception of the distinction between the two phonemes or the…

Twenty-five newborn infants were tested for auditory-oral matching behavior when presented with the consonant sound /m/ and the vowel sound /a/--a precursor behavior to vocal imitation. Auditory-oral matching behavior by the infant was operationally defined as showing the mouth movement appropriate for producing the model sound just heard (mouth…

In speech perception, children give particular patterns of weight to different acoustic cues (their cue weighting). These patterns appear to change with increased linguistic experience. Previous speech perception research has found a positive correlation between more analytical cue weighting strategies and the ability to consciously think about…

This article reviews experiments that have revealed developmental changes in speech perception that accompany improvements in access to phonetic structure. It explains how these perceptual changes appear to be related to other aspects of language development. Evidence is provided that these changes result from adequate language experience in…

Research on reading has tried, and failed, to account for wide disparities in reading skill even among children taught by the same method. Why do some children learn to read easily and quickly while others, in the same classroom and taught by the same teacher, don't learn to read at all? In "Language Development and Learning to Read", Diane…