Infant-directed speech (IDS) is phonetically distinct from adult-directed speech (ADS): It is typically considered to have special prosody--like higher pitch and slower speaking rates--as well as unique speech sound properties, for example, more breathy, hyperarticulated, and/or variable consonant and vowel articulation. These phonetic features…

Research has shown that young infants use contrasting acoustic information to distinguish consonants. This has been used to argue that by 12 months, infants have homed in on their native language sound categories. However, this ability seems to be positionally constrained, with contrasts at the beginning of words (onsets) discriminated earlier.…

Does the language we speak affect the way we think, and if so, how? Previous researchers have considered this question by exploring the cognitive abilities of speakers of different languages. In the present study, we looked for evidence of linguistic relativity within a language and within participants by looking at memory recall for monolingual…

Purpose: The author followed 56 internationally adopted children during the first 3 years after adoption to determine how and when they reached age-expected language proficiency in Standard American English. The influence of age of adoption was measured, along with the relationship between early and later language and speech outcomes. Method:…

We investigated the role of syllables during speech planning in English by measuring syllable-frequency effects. So far, syllable-frequency effects in English have not been reported. English has poorly defined syllable boundaries, and thus the syllable might not function as a prominent unit in English speech production. Speakers produced either…

Studies of English and German find that children tend to acquire word-final consonant clusters before word-initial consonant clusters. This order of acquisition is generally attributed to articulatory, frequency and/or morphological factors. This contrasts with recent experimental findings from French, where two-year-olds were better at producing…

Many languages exhibit constraints on prosodic words, where lexical items must be composed of at least two moras of structure, or a binary foot. Demuth and Fee (1995) proposed that children demonstrate early sensitivity to word-minimality effects, exhibiting a period of vowel lengthening or vowel epenthesis if coda consonants cannot be produced.…

This paper attempts to demonstrate that children do not necessarily acquire fricatives before affricates. It begins with a summary and explanation of relevant parts of R. Jakobson's general theory of phonological acquisition. In part 2, an account of one child's acquisition of English affricates and fricatives is presented. In the period studied,…

The paper discusses some important distinctions between linguistic competence and linguistic performance. It is the authors' contention that the distinction between the two must be maintained in experimental linguistics, or else inadequate models result. Three experiments are described. In the first, subjects pronounce nonsense words and the…

In order to ascertain the effect of different demands on cognitive processes as reflected in speech rate, pause and hesitation phenomena, 90 young men, 45 native speakers of English (U.S.A.) and 45 native speakers of Spanish (Mexico), were asked to retell a story presented in one of three ways: (1) film plus narration; (2) film only; (3) narration…

This study progressively examines fundamental principles of articulatory phonetics, French and English phonemics, and theoretical phonetics. The Parisian accent is examined at great length. Vowel charts and phonetically transcribed sample lexical items are included. For a companion document see FL 001 799. [Hard copy not available due to marginal…

The essays in this collection cover a wide variety of topics related to linguistics and speech. Many essays cover topics concerned with phonology: phonological units, developmental phonology, phonetic reality, rhythmic prose, sound syntax, and meaning, interconsonantal differences, and Japanese and English consonant phonemes. Other topics in the…

This study is comprised of five major sections, each of which focuses on a central linguistic issue germane to the understanding of the general phonetic characteristics of languages. The sections include: (1) a comparative study of terminal consonant releases; (2) the influence of consonants upon contiguous vowels --phase 1: vowel duration; (3)…